sorry, I got a little snippy. Of course, a great thing to practice is comping in 2-note voicings, just 3rd and 7th. But I feel that too often, becoming a jazz musician is presented as if you need years of study of complicated harmonic theory to be even able to start, and yet in my experience a few simple ideas will get you a long way, *if you understand them abstractly* that is, if you recognize that many different things are just various facets of the same underlying idea, and so rather than learning dozens of rules, a more efficient thing to do is to see that many rules are just different ways of saying the same easy thing, that just has trouble being expressed verbally.
To get zen for a moment, every semester I tell my students (I don't teach music, I teach math) the 3 blind guys and an elephant story
https://en.wikipedia.org/wiki/Blind_men_and_an_elephant as an explanation that although what I teach seems difficult, it only seems that way because human language is not well suited for explaining certain things that the brain has no trouble internalizing. I think this applies very well to music, especially standard "root movement" harmony: different people have different terminology, different "theories", etc, which makes it seem like a difficult topic. (just read any of the theory disscusions on this site for evidence of this) But eventually each player internalizes/organizes a method of understanding music that transcends any kind of theory or system, and at this stage it is not hard.
SO for example, learning many voicings and inversions of many chords (and connecting sequences of such) is one way to expand your comping toolbox. Thinking of chord substitutions is another. Reducing chords to 3rds and 7ths is another, using only guide tones (one note comping) and so forth. These are like the tusk, the trunk, the tail, etc of the elephant. Eventually your brain organizes all this in a higher level thing called "comping" and more generally "improvising" which is simple, if complicated to put into words.
For me, *purposely* failing to distinguish between an Amin and a D7 simplifies things. Of course this can go too far, for example I hate listening to improv where someone noodles on the same scale over an entire diatonic progression.
notating 7/4 and 4/7 chords
Yesterday, 08:17 PM in Ear Training, Transcribing & Reading