What are the diatonic extended chords of C major? Announcing the arrival of Valued Associate #679: Cesar Manara Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Is there a standard set of diatonic ninth chords in jazz?Naming the 13th chord on the leading tone of a major scaleWhat are the Reggae ChordsDifference between Polychords and Extended chordsUse and Sound of Extended ChordsIn any major key, what Roman Numerals indicate the major, minor, and diminished chords?What are the different ways of adding non-diatonic chords?What are the chords names for these two-note “chords”?Diatonic chordsDo seventh chords and extended chords create more dissonance?Is E7 diatonic to A minor or not?Are these chords in the A-flat major scale?

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What are the diatonic extended chords of C major?



Announcing the arrival of Valued Associate #679: Cesar Manara
Planned maintenance scheduled April 23, 2019 at 00:00UTC (8:00pm US/Eastern)Is there a standard set of diatonic ninth chords in jazz?Naming the 13th chord on the leading tone of a major scaleWhat are the Reggae ChordsDifference between Polychords and Extended chordsUse and Sound of Extended ChordsIn any major key, what Roman Numerals indicate the major, minor, and diminished chords?What are the different ways of adding non-diatonic chords?What are the chords names for these two-note “chords”?Diatonic chordsDo seventh chords and extended chords create more dissonance?Is E7 diatonic to A minor or not?Are these chords in the A-flat major scale?










1















I saw this question about 9ths, but I'd like to know what the diatonic chords of 11ths and 13ths as well. This isn't strictly for jazz, I just want to know what the basic diatonic chords are.



I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes and call them seventh chords? It makes me unsure how to notate 11th and 13th chords.



7th chords of C major:



  • Cmaj7

  • Dm7

  • Em7

  • Fmaj7

  • G7

  • Am7

  • Bdim7

9th chords of C major:



  • Cmaj9

  • Dm9

  • Em7(♭9)

  • Fmaj9

  • G9

  • Am9

  • Bm7(♭5 ♭9)

So what are the diatonic chords of 11ths and 13ths in C-major?










share|improve this question



















  • 1





    highly related: music.stackexchange.com/questions/74886/…

    – Dom
    8 hours ago











  • What I would do when i was learning these, was just to stack thirds(with notes from the scale I was on) on top of the root till I reached the extension I wanted. It took a while but it got me the result

    – Shevliaskovic
    8 hours ago







  • 1





    If you just took the time to stack thirds (diatonically) you would find the answer yourself.

    – Tim
    8 hours ago











  • truthfully after the answer below I'm even more confused. its mainly the notation that's mixing me up. not finding the actual notes. need to stare at this for awhile.

    – foreyez
    8 hours ago












  • @foreyez When you say the 'notation' is mixing you up, do you mean the staff notation or the jazz symbols?

    – Michael Curtis
    7 hours ago















1















I saw this question about 9ths, but I'd like to know what the diatonic chords of 11ths and 13ths as well. This isn't strictly for jazz, I just want to know what the basic diatonic chords are.



I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes and call them seventh chords? It makes me unsure how to notate 11th and 13th chords.



7th chords of C major:



  • Cmaj7

  • Dm7

  • Em7

  • Fmaj7

  • G7

  • Am7

  • Bdim7

9th chords of C major:



  • Cmaj9

  • Dm9

  • Em7(♭9)

  • Fmaj9

  • G9

  • Am9

  • Bm7(♭5 ♭9)

So what are the diatonic chords of 11ths and 13ths in C-major?










share|improve this question



















  • 1





    highly related: music.stackexchange.com/questions/74886/…

    – Dom
    8 hours ago











  • What I would do when i was learning these, was just to stack thirds(with notes from the scale I was on) on top of the root till I reached the extension I wanted. It took a while but it got me the result

    – Shevliaskovic
    8 hours ago







  • 1





    If you just took the time to stack thirds (diatonically) you would find the answer yourself.

    – Tim
    8 hours ago











  • truthfully after the answer below I'm even more confused. its mainly the notation that's mixing me up. not finding the actual notes. need to stare at this for awhile.

    – foreyez
    8 hours ago












  • @foreyez When you say the 'notation' is mixing you up, do you mean the staff notation or the jazz symbols?

    – Michael Curtis
    7 hours ago













1












1








1








I saw this question about 9ths, but I'd like to know what the diatonic chords of 11ths and 13ths as well. This isn't strictly for jazz, I just want to know what the basic diatonic chords are.



I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes and call them seventh chords? It makes me unsure how to notate 11th and 13th chords.



7th chords of C major:



  • Cmaj7

  • Dm7

  • Em7

  • Fmaj7

  • G7

  • Am7

  • Bdim7

9th chords of C major:



  • Cmaj9

  • Dm9

  • Em7(♭9)

  • Fmaj9

  • G9

  • Am9

  • Bm7(♭5 ♭9)

So what are the diatonic chords of 11ths and 13ths in C-major?










share|improve this question
















I saw this question about 9ths, but I'd like to know what the diatonic chords of 11ths and 13ths as well. This isn't strictly for jazz, I just want to know what the basic diatonic chords are.



I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes and call them seventh chords? It makes me unsure how to notate 11th and 13th chords.



7th chords of C major:



  • Cmaj7

  • Dm7

  • Em7

  • Fmaj7

  • G7

  • Am7

  • Bdim7

9th chords of C major:



  • Cmaj9

  • Dm9

  • Em7(♭9)

  • Fmaj9

  • G9

  • Am9

  • Bm7(♭5 ♭9)

So what are the diatonic chords of 11ths and 13ths in C-major?







chords notation






share|improve this question















share|improve this question













share|improve this question




share|improve this question








edited 8 hours ago







foreyez

















asked 9 hours ago









foreyezforeyez

5,72542689




5,72542689







  • 1





    highly related: music.stackexchange.com/questions/74886/…

    – Dom
    8 hours ago











  • What I would do when i was learning these, was just to stack thirds(with notes from the scale I was on) on top of the root till I reached the extension I wanted. It took a while but it got me the result

    – Shevliaskovic
    8 hours ago







  • 1





    If you just took the time to stack thirds (diatonically) you would find the answer yourself.

    – Tim
    8 hours ago











  • truthfully after the answer below I'm even more confused. its mainly the notation that's mixing me up. not finding the actual notes. need to stare at this for awhile.

    – foreyez
    8 hours ago












  • @foreyez When you say the 'notation' is mixing you up, do you mean the staff notation or the jazz symbols?

    – Michael Curtis
    7 hours ago












  • 1





    highly related: music.stackexchange.com/questions/74886/…

    – Dom
    8 hours ago











  • What I would do when i was learning these, was just to stack thirds(with notes from the scale I was on) on top of the root till I reached the extension I wanted. It took a while but it got me the result

    – Shevliaskovic
    8 hours ago







  • 1





    If you just took the time to stack thirds (diatonically) you would find the answer yourself.

    – Tim
    8 hours ago











  • truthfully after the answer below I'm even more confused. its mainly the notation that's mixing me up. not finding the actual notes. need to stare at this for awhile.

    – foreyez
    8 hours ago












  • @foreyez When you say the 'notation' is mixing you up, do you mean the staff notation or the jazz symbols?

    – Michael Curtis
    7 hours ago







1




1





highly related: music.stackexchange.com/questions/74886/…

– Dom
8 hours ago





highly related: music.stackexchange.com/questions/74886/…

– Dom
8 hours ago













What I would do when i was learning these, was just to stack thirds(with notes from the scale I was on) on top of the root till I reached the extension I wanted. It took a while but it got me the result

– Shevliaskovic
8 hours ago






What I would do when i was learning these, was just to stack thirds(with notes from the scale I was on) on top of the root till I reached the extension I wanted. It took a while but it got me the result

– Shevliaskovic
8 hours ago





1




1





If you just took the time to stack thirds (diatonically) you would find the answer yourself.

– Tim
8 hours ago





If you just took the time to stack thirds (diatonically) you would find the answer yourself.

– Tim
8 hours ago













truthfully after the answer below I'm even more confused. its mainly the notation that's mixing me up. not finding the actual notes. need to stare at this for awhile.

– foreyez
8 hours ago






truthfully after the answer below I'm even more confused. its mainly the notation that's mixing me up. not finding the actual notes. need to stare at this for awhile.

– foreyez
8 hours ago














@foreyez When you say the 'notation' is mixing you up, do you mean the staff notation or the jazz symbols?

– Michael Curtis
7 hours ago





@foreyez When you say the 'notation' is mixing you up, do you mean the staff notation or the jazz symbols?

– Michael Curtis
7 hours ago










2 Answers
2






active

oldest

votes


















4














The diatonic extended chords of C major appear below.



Diatonic Chords of C Major



The alterations you see in chord symbols (♭9, for example) are exceptions to the assumptions about those intervals. To keep the symbols as compact as possible, each interval within the chord has a "default" quality. For example, you already know that the third of a chord is assumed to be major unless the symbol says it's minor, which is indicated with an m, min, or -. It works similarly for the other intervals within the chord.



  • A seventh is assumed to be a minor seventh from the root, so major 7ths need to be indicated with M, maj, or △.

  • A ninth is assumed to be a major ninth from the root, so minor 9th intervals are indicated with a ♭9. (You'll also see ♯9 for augmented ninth intervals.)

  • An eleventh is assumed to be a perfect eleventh from the root, so augmented eleventh intervals are indicated with a ♯11. (They are probably more common than regular eleventh chords.)

  • A thirteenth is assumed to be a major thirteenth from the root, so minor 13th intervals are indicated with a ♭13.

Since you asked about the chords that are diatonic to C major, the alterations are necessary to keep the constituent notes in that key. That's exactly the case with the ninth in the E and B chords in the key of C major. You would see the same alterations on the iii and vii chords in every major scale.



If you were to use the "default" ninth with an Em7 chord, you would be playing an F♯. Nothing prevents you from doing so; Em9 is a perfectly good chord. However, F♯ is not diatonic to C major. To get an F which is diatonic, we need to apply a flat symbol to the ninth, thus taking the F♯ down to F. The same applies to the eleventh on the F chords. A perfect eleventh up from F is B♭. To get some sort of B that's in the C major scale, we raise it. Thus, a ♯11 in the symbol takes us from B♭ to B♮.






share|improve this answer

























  • The minor ninth of E is F#. The minor 9th of E diatonically in key C is F. m9 as an interval may be E>F, but we're talking chords here, so a m9 chord (on E) is E G B D F#.

    – Tim
    8 hours ago






  • 2





    @Tim A m9 chord built on E is as you say, E G B D F♯, because the "minor" in the symbol refers to the third. The minor ninth I was referring to in the answer is the interval between the root and the 9th. I hope that's more clear now. Thanks for the feedback.

    – trw
    7 hours ago



















3














This isn't a real answer, but an addition to @trw's chord chart.




...I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes




The jazz chord symbols - in my assessment - are based upon an assumed diatonic dominant chord that extends up to the 13th. Any chord that isn't a diatonic dominant 13th chord uses various modifiers symbols altering a dominant 13th chord.



For example G dominant seven G7, to make a G minor seven from a G dominant seven we must change the third to min indicated by the min symbol Gmin7.



G dominant nine G9, to make a G dominant seven minor nine from a G dominant nine we must lower the 9th indicated by the b9 symbol G7b9.



We can compare diatonic iii and V chords extending all the way up to the 13th and note which intervals above the roots need modification in the iii chord relative to the intervals above the root of the V chord...




Em11b9b13 G13

root E G root
m13* C E M13
P11 A C P11
m9* F A M9
m7 D F m7
P5 B D P5
m3* G B M3
root E G root

iii13 V13


(*) These intervals differ from a diatonic dominant 13th chord and so the jazz chord symbol requires modifiers that detail the changed intervals.




I hope that isn't too confusing changing roots and comparing intervals.



Look back to @trw's chart and notice all the G chords are simply the root letter G plus the highest extension number. All the other chords have one or more modifiers for each interval above their roots that is not the same interval above the root of the dominant chords.




Sanity check:



The complete list of all diatonic chord with extension up to the 13th, written in jazz chord symbols, is a nightmare! But maybe we can take a step back and look at vi ii V I which is the practical basis for a lot of jazz harmony.



All four of those chord types start with the root letter and extension figures without any accidentals (except the crazy Am11b13.) Then only min is needed for the vi and ii, and maj for the I. This covers over half of the chart! That isn't too hard to manage.



Less than 1/4 of the chart uses true awful symbols like Bm11b9b5b13 and they will surely be much less frequently encountered. I don't think you need to worry about instantly recognizing their diatonic identities.






share|improve this answer




















  • 2





    +1 for "I don't think you need to worry about instantly recognizing their diatonic identities." Chord symbols are meant to make things simpler, not more complicated. At some point, their utility runs out.

    – trw
    6 hours ago











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2 Answers
2






active

oldest

votes








2 Answers
2






active

oldest

votes









active

oldest

votes






active

oldest

votes









4














The diatonic extended chords of C major appear below.



Diatonic Chords of C Major



The alterations you see in chord symbols (♭9, for example) are exceptions to the assumptions about those intervals. To keep the symbols as compact as possible, each interval within the chord has a "default" quality. For example, you already know that the third of a chord is assumed to be major unless the symbol says it's minor, which is indicated with an m, min, or -. It works similarly for the other intervals within the chord.



  • A seventh is assumed to be a minor seventh from the root, so major 7ths need to be indicated with M, maj, or △.

  • A ninth is assumed to be a major ninth from the root, so minor 9th intervals are indicated with a ♭9. (You'll also see ♯9 for augmented ninth intervals.)

  • An eleventh is assumed to be a perfect eleventh from the root, so augmented eleventh intervals are indicated with a ♯11. (They are probably more common than regular eleventh chords.)

  • A thirteenth is assumed to be a major thirteenth from the root, so minor 13th intervals are indicated with a ♭13.

Since you asked about the chords that are diatonic to C major, the alterations are necessary to keep the constituent notes in that key. That's exactly the case with the ninth in the E and B chords in the key of C major. You would see the same alterations on the iii and vii chords in every major scale.



If you were to use the "default" ninth with an Em7 chord, you would be playing an F♯. Nothing prevents you from doing so; Em9 is a perfectly good chord. However, F♯ is not diatonic to C major. To get an F which is diatonic, we need to apply a flat symbol to the ninth, thus taking the F♯ down to F. The same applies to the eleventh on the F chords. A perfect eleventh up from F is B♭. To get some sort of B that's in the C major scale, we raise it. Thus, a ♯11 in the symbol takes us from B♭ to B♮.






share|improve this answer

























  • The minor ninth of E is F#. The minor 9th of E diatonically in key C is F. m9 as an interval may be E>F, but we're talking chords here, so a m9 chord (on E) is E G B D F#.

    – Tim
    8 hours ago






  • 2





    @Tim A m9 chord built on E is as you say, E G B D F♯, because the "minor" in the symbol refers to the third. The minor ninth I was referring to in the answer is the interval between the root and the 9th. I hope that's more clear now. Thanks for the feedback.

    – trw
    7 hours ago
















4














The diatonic extended chords of C major appear below.



Diatonic Chords of C Major



The alterations you see in chord symbols (♭9, for example) are exceptions to the assumptions about those intervals. To keep the symbols as compact as possible, each interval within the chord has a "default" quality. For example, you already know that the third of a chord is assumed to be major unless the symbol says it's minor, which is indicated with an m, min, or -. It works similarly for the other intervals within the chord.



  • A seventh is assumed to be a minor seventh from the root, so major 7ths need to be indicated with M, maj, or △.

  • A ninth is assumed to be a major ninth from the root, so minor 9th intervals are indicated with a ♭9. (You'll also see ♯9 for augmented ninth intervals.)

  • An eleventh is assumed to be a perfect eleventh from the root, so augmented eleventh intervals are indicated with a ♯11. (They are probably more common than regular eleventh chords.)

  • A thirteenth is assumed to be a major thirteenth from the root, so minor 13th intervals are indicated with a ♭13.

Since you asked about the chords that are diatonic to C major, the alterations are necessary to keep the constituent notes in that key. That's exactly the case with the ninth in the E and B chords in the key of C major. You would see the same alterations on the iii and vii chords in every major scale.



If you were to use the "default" ninth with an Em7 chord, you would be playing an F♯. Nothing prevents you from doing so; Em9 is a perfectly good chord. However, F♯ is not diatonic to C major. To get an F which is diatonic, we need to apply a flat symbol to the ninth, thus taking the F♯ down to F. The same applies to the eleventh on the F chords. A perfect eleventh up from F is B♭. To get some sort of B that's in the C major scale, we raise it. Thus, a ♯11 in the symbol takes us from B♭ to B♮.






share|improve this answer

























  • The minor ninth of E is F#. The minor 9th of E diatonically in key C is F. m9 as an interval may be E>F, but we're talking chords here, so a m9 chord (on E) is E G B D F#.

    – Tim
    8 hours ago






  • 2





    @Tim A m9 chord built on E is as you say, E G B D F♯, because the "minor" in the symbol refers to the third. The minor ninth I was referring to in the answer is the interval between the root and the 9th. I hope that's more clear now. Thanks for the feedback.

    – trw
    7 hours ago














4












4








4







The diatonic extended chords of C major appear below.



Diatonic Chords of C Major



The alterations you see in chord symbols (♭9, for example) are exceptions to the assumptions about those intervals. To keep the symbols as compact as possible, each interval within the chord has a "default" quality. For example, you already know that the third of a chord is assumed to be major unless the symbol says it's minor, which is indicated with an m, min, or -. It works similarly for the other intervals within the chord.



  • A seventh is assumed to be a minor seventh from the root, so major 7ths need to be indicated with M, maj, or △.

  • A ninth is assumed to be a major ninth from the root, so minor 9th intervals are indicated with a ♭9. (You'll also see ♯9 for augmented ninth intervals.)

  • An eleventh is assumed to be a perfect eleventh from the root, so augmented eleventh intervals are indicated with a ♯11. (They are probably more common than regular eleventh chords.)

  • A thirteenth is assumed to be a major thirteenth from the root, so minor 13th intervals are indicated with a ♭13.

Since you asked about the chords that are diatonic to C major, the alterations are necessary to keep the constituent notes in that key. That's exactly the case with the ninth in the E and B chords in the key of C major. You would see the same alterations on the iii and vii chords in every major scale.



If you were to use the "default" ninth with an Em7 chord, you would be playing an F♯. Nothing prevents you from doing so; Em9 is a perfectly good chord. However, F♯ is not diatonic to C major. To get an F which is diatonic, we need to apply a flat symbol to the ninth, thus taking the F♯ down to F. The same applies to the eleventh on the F chords. A perfect eleventh up from F is B♭. To get some sort of B that's in the C major scale, we raise it. Thus, a ♯11 in the symbol takes us from B♭ to B♮.






share|improve this answer















The diatonic extended chords of C major appear below.



Diatonic Chords of C Major



The alterations you see in chord symbols (♭9, for example) are exceptions to the assumptions about those intervals. To keep the symbols as compact as possible, each interval within the chord has a "default" quality. For example, you already know that the third of a chord is assumed to be major unless the symbol says it's minor, which is indicated with an m, min, or -. It works similarly for the other intervals within the chord.



  • A seventh is assumed to be a minor seventh from the root, so major 7ths need to be indicated with M, maj, or △.

  • A ninth is assumed to be a major ninth from the root, so minor 9th intervals are indicated with a ♭9. (You'll also see ♯9 for augmented ninth intervals.)

  • An eleventh is assumed to be a perfect eleventh from the root, so augmented eleventh intervals are indicated with a ♯11. (They are probably more common than regular eleventh chords.)

  • A thirteenth is assumed to be a major thirteenth from the root, so minor 13th intervals are indicated with a ♭13.

Since you asked about the chords that are diatonic to C major, the alterations are necessary to keep the constituent notes in that key. That's exactly the case with the ninth in the E and B chords in the key of C major. You would see the same alterations on the iii and vii chords in every major scale.



If you were to use the "default" ninth with an Em7 chord, you would be playing an F♯. Nothing prevents you from doing so; Em9 is a perfectly good chord. However, F♯ is not diatonic to C major. To get an F which is diatonic, we need to apply a flat symbol to the ninth, thus taking the F♯ down to F. The same applies to the eleventh on the F chords. A perfect eleventh up from F is B♭. To get some sort of B that's in the C major scale, we raise it. Thus, a ♯11 in the symbol takes us from B♭ to B♮.







share|improve this answer














share|improve this answer



share|improve this answer








edited 6 hours ago

























answered 8 hours ago









trwtrw

3,4751529




3,4751529












  • The minor ninth of E is F#. The minor 9th of E diatonically in key C is F. m9 as an interval may be E>F, but we're talking chords here, so a m9 chord (on E) is E G B D F#.

    – Tim
    8 hours ago






  • 2





    @Tim A m9 chord built on E is as you say, E G B D F♯, because the "minor" in the symbol refers to the third. The minor ninth I was referring to in the answer is the interval between the root and the 9th. I hope that's more clear now. Thanks for the feedback.

    – trw
    7 hours ago


















  • The minor ninth of E is F#. The minor 9th of E diatonically in key C is F. m9 as an interval may be E>F, but we're talking chords here, so a m9 chord (on E) is E G B D F#.

    – Tim
    8 hours ago






  • 2





    @Tim A m9 chord built on E is as you say, E G B D F♯, because the "minor" in the symbol refers to the third. The minor ninth I was referring to in the answer is the interval between the root and the 9th. I hope that's more clear now. Thanks for the feedback.

    – trw
    7 hours ago

















The minor ninth of E is F#. The minor 9th of E diatonically in key C is F. m9 as an interval may be E>F, but we're talking chords here, so a m9 chord (on E) is E G B D F#.

– Tim
8 hours ago





The minor ninth of E is F#. The minor 9th of E diatonically in key C is F. m9 as an interval may be E>F, but we're talking chords here, so a m9 chord (on E) is E G B D F#.

– Tim
8 hours ago




2




2





@Tim A m9 chord built on E is as you say, E G B D F♯, because the "minor" in the symbol refers to the third. The minor ninth I was referring to in the answer is the interval between the root and the 9th. I hope that's more clear now. Thanks for the feedback.

– trw
7 hours ago






@Tim A m9 chord built on E is as you say, E G B D F♯, because the "minor" in the symbol refers to the third. The minor ninth I was referring to in the answer is the interval between the root and the 9th. I hope that's more clear now. Thanks for the feedback.

– trw
7 hours ago












3














This isn't a real answer, but an addition to @trw's chord chart.




...I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes




The jazz chord symbols - in my assessment - are based upon an assumed diatonic dominant chord that extends up to the 13th. Any chord that isn't a diatonic dominant 13th chord uses various modifiers symbols altering a dominant 13th chord.



For example G dominant seven G7, to make a G minor seven from a G dominant seven we must change the third to min indicated by the min symbol Gmin7.



G dominant nine G9, to make a G dominant seven minor nine from a G dominant nine we must lower the 9th indicated by the b9 symbol G7b9.



We can compare diatonic iii and V chords extending all the way up to the 13th and note which intervals above the roots need modification in the iii chord relative to the intervals above the root of the V chord...




Em11b9b13 G13

root E G root
m13* C E M13
P11 A C P11
m9* F A M9
m7 D F m7
P5 B D P5
m3* G B M3
root E G root

iii13 V13


(*) These intervals differ from a diatonic dominant 13th chord and so the jazz chord symbol requires modifiers that detail the changed intervals.




I hope that isn't too confusing changing roots and comparing intervals.



Look back to @trw's chart and notice all the G chords are simply the root letter G plus the highest extension number. All the other chords have one or more modifiers for each interval above their roots that is not the same interval above the root of the dominant chords.




Sanity check:



The complete list of all diatonic chord with extension up to the 13th, written in jazz chord symbols, is a nightmare! But maybe we can take a step back and look at vi ii V I which is the practical basis for a lot of jazz harmony.



All four of those chord types start with the root letter and extension figures without any accidentals (except the crazy Am11b13.) Then only min is needed for the vi and ii, and maj for the I. This covers over half of the chart! That isn't too hard to manage.



Less than 1/4 of the chart uses true awful symbols like Bm11b9b5b13 and they will surely be much less frequently encountered. I don't think you need to worry about instantly recognizing their diatonic identities.






share|improve this answer




















  • 2





    +1 for "I don't think you need to worry about instantly recognizing their diatonic identities." Chord symbols are meant to make things simpler, not more complicated. At some point, their utility runs out.

    – trw
    6 hours ago















3














This isn't a real answer, but an addition to @trw's chord chart.




...I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes




The jazz chord symbols - in my assessment - are based upon an assumed diatonic dominant chord that extends up to the 13th. Any chord that isn't a diatonic dominant 13th chord uses various modifiers symbols altering a dominant 13th chord.



For example G dominant seven G7, to make a G minor seven from a G dominant seven we must change the third to min indicated by the min symbol Gmin7.



G dominant nine G9, to make a G dominant seven minor nine from a G dominant nine we must lower the 9th indicated by the b9 symbol G7b9.



We can compare diatonic iii and V chords extending all the way up to the 13th and note which intervals above the roots need modification in the iii chord relative to the intervals above the root of the V chord...




Em11b9b13 G13

root E G root
m13* C E M13
P11 A C P11
m9* F A M9
m7 D F m7
P5 B D P5
m3* G B M3
root E G root

iii13 V13


(*) These intervals differ from a diatonic dominant 13th chord and so the jazz chord symbol requires modifiers that detail the changed intervals.




I hope that isn't too confusing changing roots and comparing intervals.



Look back to @trw's chart and notice all the G chords are simply the root letter G plus the highest extension number. All the other chords have one or more modifiers for each interval above their roots that is not the same interval above the root of the dominant chords.




Sanity check:



The complete list of all diatonic chord with extension up to the 13th, written in jazz chord symbols, is a nightmare! But maybe we can take a step back and look at vi ii V I which is the practical basis for a lot of jazz harmony.



All four of those chord types start with the root letter and extension figures without any accidentals (except the crazy Am11b13.) Then only min is needed for the vi and ii, and maj for the I. This covers over half of the chart! That isn't too hard to manage.



Less than 1/4 of the chart uses true awful symbols like Bm11b9b5b13 and they will surely be much less frequently encountered. I don't think you need to worry about instantly recognizing their diatonic identities.






share|improve this answer




















  • 2





    +1 for "I don't think you need to worry about instantly recognizing their diatonic identities." Chord symbols are meant to make things simpler, not more complicated. At some point, their utility runs out.

    – trw
    6 hours ago













3












3








3







This isn't a real answer, but an addition to @trw's chord chart.




...I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes




The jazz chord symbols - in my assessment - are based upon an assumed diatonic dominant chord that extends up to the 13th. Any chord that isn't a diatonic dominant 13th chord uses various modifiers symbols altering a dominant 13th chord.



For example G dominant seven G7, to make a G minor seven from a G dominant seven we must change the third to min indicated by the min symbol Gmin7.



G dominant nine G9, to make a G dominant seven minor nine from a G dominant nine we must lower the 9th indicated by the b9 symbol G7b9.



We can compare diatonic iii and V chords extending all the way up to the 13th and note which intervals above the roots need modification in the iii chord relative to the intervals above the root of the V chord...




Em11b9b13 G13

root E G root
m13* C E M13
P11 A C P11
m9* F A M9
m7 D F m7
P5 B D P5
m3* G B M3
root E G root

iii13 V13


(*) These intervals differ from a diatonic dominant 13th chord and so the jazz chord symbol requires modifiers that detail the changed intervals.




I hope that isn't too confusing changing roots and comparing intervals.



Look back to @trw's chart and notice all the G chords are simply the root letter G plus the highest extension number. All the other chords have one or more modifiers for each interval above their roots that is not the same interval above the root of the dominant chords.




Sanity check:



The complete list of all diatonic chord with extension up to the 13th, written in jazz chord symbols, is a nightmare! But maybe we can take a step back and look at vi ii V I which is the practical basis for a lot of jazz harmony.



All four of those chord types start with the root letter and extension figures without any accidentals (except the crazy Am11b13.) Then only min is needed for the vi and ii, and maj for the I. This covers over half of the chart! That isn't too hard to manage.



Less than 1/4 of the chart uses true awful symbols like Bm11b9b5b13 and they will surely be much less frequently encountered. I don't think you need to worry about instantly recognizing their diatonic identities.






share|improve this answer















This isn't a real answer, but an addition to @trw's chord chart.




...I'm confused at the notation, For example the iii and vii chords of the 9ths chords look like Em7(♭9) and Bm7(♭5 ♭9) why do they flat certain notes




The jazz chord symbols - in my assessment - are based upon an assumed diatonic dominant chord that extends up to the 13th. Any chord that isn't a diatonic dominant 13th chord uses various modifiers symbols altering a dominant 13th chord.



For example G dominant seven G7, to make a G minor seven from a G dominant seven we must change the third to min indicated by the min symbol Gmin7.



G dominant nine G9, to make a G dominant seven minor nine from a G dominant nine we must lower the 9th indicated by the b9 symbol G7b9.



We can compare diatonic iii and V chords extending all the way up to the 13th and note which intervals above the roots need modification in the iii chord relative to the intervals above the root of the V chord...




Em11b9b13 G13

root E G root
m13* C E M13
P11 A C P11
m9* F A M9
m7 D F m7
P5 B D P5
m3* G B M3
root E G root

iii13 V13


(*) These intervals differ from a diatonic dominant 13th chord and so the jazz chord symbol requires modifiers that detail the changed intervals.




I hope that isn't too confusing changing roots and comparing intervals.



Look back to @trw's chart and notice all the G chords are simply the root letter G plus the highest extension number. All the other chords have one or more modifiers for each interval above their roots that is not the same interval above the root of the dominant chords.




Sanity check:



The complete list of all diatonic chord with extension up to the 13th, written in jazz chord symbols, is a nightmare! But maybe we can take a step back and look at vi ii V I which is the practical basis for a lot of jazz harmony.



All four of those chord types start with the root letter and extension figures without any accidentals (except the crazy Am11b13.) Then only min is needed for the vi and ii, and maj for the I. This covers over half of the chart! That isn't too hard to manage.



Less than 1/4 of the chart uses true awful symbols like Bm11b9b5b13 and they will surely be much less frequently encountered. I don't think you need to worry about instantly recognizing their diatonic identities.







share|improve this answer














share|improve this answer



share|improve this answer








edited 6 hours ago

























answered 6 hours ago









Michael CurtisMichael Curtis

12.3k744




12.3k744







  • 2





    +1 for "I don't think you need to worry about instantly recognizing their diatonic identities." Chord symbols are meant to make things simpler, not more complicated. At some point, their utility runs out.

    – trw
    6 hours ago












  • 2





    +1 for "I don't think you need to worry about instantly recognizing their diatonic identities." Chord symbols are meant to make things simpler, not more complicated. At some point, their utility runs out.

    – trw
    6 hours ago







2




2





+1 for "I don't think you need to worry about instantly recognizing their diatonic identities." Chord symbols are meant to make things simpler, not more complicated. At some point, their utility runs out.

– trw
6 hours ago





+1 for "I don't think you need to worry about instantly recognizing their diatonic identities." Chord symbols are meant to make things simpler, not more complicated. At some point, their utility runs out.

– trw
6 hours ago

















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