Any form of a "Cminxxxxx" chord can be the Tonic home "key", despite what the (ancient and anachronistic) Key Signature of "3 flats" suggests. Cmin (natural 6) 9 is a beautiful Tonic chord. Key Signatures are becoming less and less relevant as music evolves.
Cmin6/9 is very common in the jazz, pop, and funk worlds.
Also - Play this at a piano for i - VI - ii - V in Cminor :
Cmin6/9, A7#9b13, Dmin7b5, G7#9b13. (the VI7 chord of A7#9b13 works beautifully there, damn the Key Signature.) I don't often find it useful to try and ascribe a single scale for a i - VI - ii - V progression. As a matter of fact, I find it limiting, both Harmonically and Melodically.
IMFO, of course.
Just my $0.03.
Thanks.
Great advice. I have little formal training, but am blessed with good ears and instincts. I periodically jam with a guitarist who by nature and training (a neurologist/linguist) is highly analytical, and has been studying jazz guitar for years in a fashion consistent with his analytical bent. So we play standards, take turns soloing, and then talk about what we're doing. He's often asking "which scale over what chord?" I have no frickin' idea - if I think about it after the fact, I might identify a scale, but my true inclination is to start a chorus with one or two pitches and see how far I can get over a set of changes with those pitches, or by taking either of them up or down a half step as taste and intention might dictate - I guess what I'm doing is testing for common pitches across the changes, from which I can try to build melodic lines. I also get a lot of mileage out of diminished and half-diminished scales, and a taste for phrygian/mediterranean colorings, but rarely am conscious of what I'm doing while I'm doing it in the sense of "this scale, this chord..." I've practiced a number of scales, but am thinking about how to build a story - color, texture, tension/release, building out from a simple motif, overall growth and development via rhythmic density, direction, dynamics, intensity, time feel...the scalar stuff is a tool, but you need more than just a hammer, if you want to build a house. BTW, when I say "direction," I'm often feeling my way toward building a line that incorporates ascending "plateau" notes over the course of 8 or 16 bars, building toward a target note or register with which I want to end the line or phrase. Net net - scales are necessary, but please don't think they are the end of the story.
My favorite definition of jazz: "the sound of surprise." You won't get a lot of surprises if you're just looking to correlate each chord or chordal pattern with the most coincident scale(s).
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