Five for the Hendrix Chord, E7♯9 ;-)

That's E, G♯, B, D, F

Every jazz player knows you can drop the fifth, and the root too if the bass is filling it in. That gives your fingers room to add even crazier extensions

	▲	ErroneousBosh a minute ago \| parent [-]
		Oh man have you seen the Adam Neely video "Seven Level of Jazz Harmony"? https://www.youtube.com/watch?v=lz3WR-F_pnM If not, stop and watch it. But make a cup of tea to enjoy with it first, and maybe put a cloth over your keyboard for when you inevitably splutter tea all over it.