Noel,
Thanks for your quick response!

I do use only MIDI Soloists when trying to create a "simple" Improvisation exercise for myself (actually, for my students learning basic improvisation).

As I continue to experiment, I see the "Note Range" on the Soloist Maker gives me the chance to limit the notes used to say the 5-finger scale.

But even with the "Outside Range" set to value = 1, The generated solo still permits chromatic notes.

Example: Key of C, the solo includes chromatic notes such as C#, D#, F#.

This is not a big deal. Without the chromatic notes, the generated solo is certainly not interesting!

I was just wondering if I could "force" the solo to ONLY use the diatonic notes such as C-D-E-F-G on a C Chord.

Thanks again for your help!

Bill