Hi Andy,

The melody is an imported MIDI track generated from my leadsheet from another application.

I've started to understand the differences, maybe conflicts, between MIDI tracks and RealTracks. Keeping backwards compatibility and familiarity is good, but sometimes makes for awkward compromises.

OK, let me tell you what I'm trying to achieve, without any of the "how", that's probably adding fog.

I'm trying to set up a jam/practice tool that does something similar to the jam sessions my friends and I did before covid-19 got in the way. We choose a song, play one chorus "straight out of the box", then go around each of us for a solo, then finish with a final "out of the box" chorus and some ending tag. You example of silence, say, sax, silence, sax, silence matches almost exactly that, assuming that the first and last silences are where the melody plays and the rest are not. What would you recommend as the best(?) way to achive that, please?

(?)Best is subjective, of course. :-)

Jazz relative beginner, starting at a much older age than was helpful.
Kawai MP6, Korg M50, Ui24R, Saffire Pro 40.
AVL:MXE Linux; Windows 11; Win8.1: Scarletts
BIAB2022 UltraPAK, Reaper, a bunch of stuff.