When I did the test just now, BIAB would not render the song at all until I played a few bars.

Can you test that idea? Any midi song. Load it but don't hit play. Go straight to render.

Billy


“Amazing! I’ll be working with Jaco Pastorius, Charlie Parker, Art Tatum, and Buddy Rich, and you’re telling me it’s not that great of a gig?
“Well…” Saint Peter, hesitated, “God’s got this girlfriend who thinks she can sing…”