I think the one that really “did it” for me was Ramana Maharshi.

His direct approach and Atma Vichara (self inquiry) facilitated the experience of my True Self.

I should add that while I’m not specifically a “Jazz Musician”, I play piano , and utilise substitutions, extensions etc. :)

Its the same kind if vibe as when you hang out with certain Jazz musicians / fans and they start discussing chord substitutions, extensions, etc.

Same. Just switched due to de-googling.