Cubalibre, when you use Real Band you already have access to almost everything Biab has to offer and a lot more.

Try this, keep your midi file on the first three tracks. Highlight an empty track (track 4 maybe). Then right click on that track and click Generate. That opens a menu where you can select a Real Track part, a Real Drums part or a midi instrument part. All of those parts can be in any style. Listen to each track of your midi file. Maybe the bass is using a certain pattern. You could find a RT bass that fits that style, sounds a whole lot better and you want to keep it. Fine, mute the midi bass track and use the RT track. Same with all the instruments. Many times I'll like the midi drum part (using a good synth of course) but I'll add a separate percussion track to it.

Or, you like all three parts of the midi file but you just want to add to them like rhythm guitar, some keyboards, whatever. No problem you keep the midi tracks active, select whatever new parts from the Generate menu with each one using a new empty track. And, since RB has 48 tracks to work with you can create several different versions of each instrument, check them out, decide which one works best and delete the left overs.

Seriously you could start with a basic three part midi file and create a 36 part orchestra around it using RB and all the different Biab style parts.

You don't need Biab at all for this in fact Biab can't do a lot of this without jumping through a lot of hoops, this is exactly what Real Band was created to do. You're midi file is already open in RB, just stay there and keep working.

Bob

Biab/RB latest build, Win 11 Pro, Ryzen 5 5600 G, 512 Gig SSD, 16 Gigs Ram, Steinberg UR22 MkII, Roland Sonic Cell, Kurzweil PC3, Hammond SK1, Korg PA3XPro, Garritan JABB, Hypercanvas, Sampletank 3, more.