Hello,

I'm trying to make a pretty definitive list of all the chords I'll ever use - reason is I wanna print me a little booklet with all the chord voicings for them, so I can practise them all evenly

So far I have:

Δ, -, º, +, Δ7, -7, 7, -7b5, Δ6, -6, º7, 7#5, 7b5, Δ7b5, -Δ7, -#5, Δb5, 7sus4, sus4, sus2.

(I know I'm leaving out some horrible ones that no one uses, but let me know if I'm missing something useful)

Now, when it comes to added notes (9ths, 11ths, 13ths) I'm a little confused on what to do. I mean, I've been browsing a bit through the Real Book to find what's used - and found SO many that I wondered: do yous practise them all individually or just play, say... a 7th chord and add the 9th on the spot? Or do you go and practise a "7b9sus4" or a "-6/9" as entire different chords? (If so, I suppose there are a few horrible possibilities that can be left out - e.g., a b9th and a natural 13th wouldn't be very useful, right?)

Anyway, that's like a thousand questions - any answer to any of them will be appreciated