LearnJazzPiano.com archives: chord notes

mco246 -- 01/13/2005, 08:37:20 -- #10337

Hi, In a Cm10 chord, is the 10th position (which is really a 3rd in the next octave), played based on the major scale, or natural minor scale? And does the chord quality (major or minor) determine it?   So for example:1  3 5  7 9 10 C Eb G Bb D Eb and a CM10 for example, 1  3  5 7  9  10 C  E  G B  D  E And what about a Cm13 for example? Would the 13th note be a “Ab” (based on the natural minor) or an “A” based on the major scale? I would appreciate any feedback, Thanks a lot! Mike.

marksdg -- 01/13/2005, 09:04:30 -- #10339

I have never seen a chord written Cm10.  My understanding is that the 13 or 6 always refers to the major 6th, and this makes sense for a minor chord since  C Eb G A  is a sound that maintains the sound of a C chord.  If you had C Eb G Ab  it would sound like an Ab maj7/C.  One thing that can confuse people is that a 7 refers to the flat, or minor, 7th.  The 9th and 11th are the same in minor and major. If the chord is meant to be C Eb G Bb C E, I think I would write it Cm7maj10.  This would be a dissonant sounding chord.

alhaynes -- 01/13/2005, 10:10:36 -- #10341

Or - maybe this could be a C chord with a minor 10th - though I only use this with a 7th (C E G Bb Eb). Al

marksdg -- 01/13/2005, 11:11:07 -- #10345

C with a minor 10th should be C7#9. There is real confusion in chord notation for beginners, in whether m or b or # refer to the following or the proceeding letter. For example, Cm7 means C minor with the seventh added, so m refers to the preceeding letter.  Cmaj7 means C major with a major seventh added, and so the maj refers to the following letter.  Similarly, we put b and # after the chord name, like C#m7 or Eb9, but for the following chord numbers we put the # or b before the number, like C7b9 or C7(#5).

mco246 -- 01/13/2005, 11:51:32 -- #10349

Marksdg and alhaynes, thanks for your responses!

Dr. Whack -- 01/13/2005, 12:34:12 -- #10353

Chords are built in thirds - 1 3 5 7 9 11 13...there's no need for a "10th" chord. A 10th would be redundant as would a 15th. A Cm13th is a Cm7 with the 9th 11th and 13th added...the 13th itself would not be a minor interval. The "m" does not neccesarily modify the interval that immdiately follows it in a chor symbol as stated above.  For example C7 is dominant 7th (a V7 chord in the key of F) which is actually a major triad with a minor seventh added... It's all kinda confusing at first, but like any language, as you use it you get better at it:)

Mike -- 01/14/2005, 00:13:07 -- #10367

no such animal  Neither is there a C16 chord, nor a C 12 chord.

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