Pacman said:
If you want to imply a resolution to Gm, the ii-V that precedes it should be a minor ii-V (Am7b5 - D7b9). The progression that goes Am7-D7-Gm7 works, but only if you continue the cycle it starts - Am7 - D7 - Gm7 - C7 - etc, etc. The Gm7 isn't a resolution, it's setting up a new key center (that of F major). A ii-V progression is the quickest and strongest way to outline a key center.
Traditionally yes, a major ii-V-I would be Am7 D7 GM7. A minor ii-V-I would be Am7b5 D7 (usually a b13) Gm7. Ok, that's what you're taught in theory class.
Now go to a piano and play Am7 D7 Gm7. Does it sound unpleasant? Are the changes jarring? Of course not.
Geoff - like I said before - I don't think your chord progression is bad, but it ain't Changes. Which was my original point.
It ain't the Changes, eh? How do you judge if something is or isn't the Changes?
I'm not contradicting you when you say that the chord progression I played "ain't the Changes." That's your own personal belief, and I have no right to tell you that's wrong, just as you can't tell me the chord progression I used is wrong either.
It's not like I'm forcing you to play my chord progression, right?
I realize that when you play the B section of Rhythm Changes, the audience and fellow musicians have certain expectations. Listening to what I played in the
Link Removed, I can honestly say the B section I played fits with the rest of the song. Again, I'm just playing what I hear. If you hear differently, I respect that, but neither of us is wrong.
I also understand your concept - and if you were covering a tune whos melody was written on the original Rhythm Changes, it might work to pair the original meoldy with your changes. I get that kind of reharmonization. However, reharmonizing a harmony really doesn't work in the context of playing a song form like that.
The song I was playing the Rhythm Changes from, Oleo, has no melody in the B section -- which was precisely why I took the liberties I did in reharmonizing it. If there were a melody, I would definitely make a reharmonization that would work with the melody.
It's like your example about blues. Sure, I took Jim McNeely's harmony glass where we tweaked the blues so hard that it didn't start on the tonic, and didn't have any of the orginal chords. And that's great - but you can't call what we ended up with "the blues". Are you following?
It's a granularity problem. How far can you reharmonize the blues before it ceases to be the blues? Is there a specific point where it ceases to be the blues? In fact, how do you define "the blues?" I'm interested in hearing your answer.
Personally I would consider that a heavily modified blues (such as you mentioned) would not end up being the blues. But I would make a note that it
came from the blues.
As an interesting sidenote, check out this tritonic reharmonization of Autumn Leaves:
http://www.franksinger.com/autumn_leaves_tritonic_reharm.htm
Do you still consider it Autumn Leaves although it has been so heavily reharmonized?
jeff schmidt said:
I think what you're referring to is the 'alternate cycle" which is nothing more than the recognition that on the cycle of 5ths diagram - the note exactly opposite any other note is a flat 5 or tritone away. But since TT subs are specfic to dominant chords for the reasons you've already acknowledged - I'm not sure what makes TT sub for non-dominant chords any more "complimentary" than any OTHER interval. What about the fact that if you make a 90 degree angle from any note on the cycle it always leads to a note a minor 3rd away? Same kind of observation. Other than that relationship on the cycle of 5th -what makes non-dominant chords a tritone away more complimentary than any other interval?
It's not a tritone subsitution. I made a point to note that I wasn't mistakenly doing a tritone subsitution with minor chords because obviously tritone subsitution only works with dominant chords.
What the alternate cycle states is that a ii-V-I cadence has a corresponding "alternate cycle" a tritone away.
Am7 | D7 | Dbm7
So the first two chords are the traditional ii-V, but then the last chord, the Dbm7, is from the alternate cycle in a ii-V-Im7 cadence. I took this journey in the opposite end of the wheel of fifths farther with the next few chords.
Use your ears. You can't say any chord or anything is "more complimentary" than any other, because that is completely personal opinion. My personal opinion is that some certain chords compliment each other better than others, and that perhaps this is similar to colors on the color wheel.
Overall, many people need to realize that what it really rounds down to is using your ears. When Herbie Hancock takes a solo, do you think he's thinking, "Okay, it's a D7 (#9) chord, so I'm going to use the altered scale..." Of course not, that's obsurd. There's nothing wrong with jazz theory, but eventually you want it to become your instincts. You shouldn't even have to think about which scale to use where when playing. In fact, ultimately you should just be playing what you're hearing.
Listen to Kenny Werner solo in A over a song in Ab.
Oh, and here's something interesting and helpful:
Link Removed