Papity, you've been helpful answering all these questions so we have the full info. I know it takes patience to work thorough a problem.

While I have zero understanding of bluegrass, I actually do understand one aspect of what you are doing, since Brazilian sambas (that I do understand quite well) and bluegrass are often written at similar tempos and appear in cut time so there aren't a million sixteenth notes. User Bobflatpicker may be able to help here, as his expertise includes bluegrass. Together we were able to promote implementing this cut-time feature of BIAB a few years ago, when few others understood. I'm sending Bob a PM.

Since Mario, Dan and I have all the RealTracks, we could not know for certain what you have, and we cannot replicate your situation. You said " I own Band in a Box Pro + Midi Soloist Set 5 (Bluegrass Soloing ReatTracks)." What I don't know is if the Soloist Set 5 has everything you need, along with the limits of what is included in the Pro version. Those entries of "n/a" would indicate this should be examined more closely.

BIAB 2025 Win Audiophile. Software: Studio One 7 Pro, Swam horns, Acoustica-7, Notion 6, Song Master Pro, Win 11 Home. Hardware: Intel i9, 32 Gb; Roland Integra-7, Presonus 192 & Faderport 8, Royer 121, Adam Sub8 & Neumann 120 monitors.