The OP posted the question in the Music Theory subfora which doesn't specify whether this a Jazz Harmony question or a Classical Harmony question. If we are referring to a Jazz improvised situation then IMO, Chick's system is hardly an "other" approach or explanation for notation. We are supposed to be able to hear what's going on. We are supposed to be listening and interacting not buried in a chart. The first four notes of the chord in the chord symbols is just a take off point or guide. Just sayin'.
ChuckCorbisiero,
Below is the OP's 2nd entry: It was, in fact, a "jazz..." question. FYI.
"Thanks guys. I'm learning how to play "All the things you are" and was a bit confused by the C+7 in the 24th bar.
It's a chord I didn't expect there and to me (and my lack of knowledge) makes no sense. Bar 21 -24 is like this:
| F#-7 | B7 | Emaj7 | C+7 |
By seeing the first 3 chords I'd think "E major scale/modes" but then there would be a C#-7 and not a C+7.
It also isn't part of the Ab scale/modes following the C+7 (F-7,Bb-7,Eb7, etc ....) because then I would expect a C-7.
So basically, the C+7 is one big mystery to me.
Well, sometimes I think too much I guess"
Thanks for your time and interest.
On top or on the bottom? I mean the 6 and 9 ....you know....6&9......oh hell.....fugetaboutit..........(WHO said tomotto? Right! No it was IONA TOMATO.)