Bass solo over "Time Remembered" (Bill Evans) using the upper extensions of the original chords.
Mainly I´m using this type of susbtitutions (examples in C):
ORIGINAL CHORD SOLO OVER CHORD EXTENSIONS
CMaj7(#11) D7 9 - #11 - 13
CMaj7(#11) Bm triad 7 - 9 -#11
Cm7 (dorian) Dm7 9 - 11 - 13
Cm7 (dorian) Bb triad b7 - 9 - 11
Here you have "Time Remembered" lead sheet (Aebersold Series) with my substitutions chords, with the upper strucutures that I really play, in red.