Hey !
I'm back here.
Big update for TI-Piano (see under), with a menu with options to change keys.
Now you can modify 'note density' and keys to change of octave.
To compile it:
Launch PIAN0 (TI-Basic prgm which will draw & store pic)
Restore backup AXEPIANO.8xv and compile it.
I'm not sure that it will work on Axe 1.
; but add spaces and it should be working.
Enjoy !
(I make a 7-octaves piano, but on old version ... )