http://vmpk.sourceforge.net/
http://www.tobias-erichsen.de/software/loopmidi.html

Use same LoopMidi output from vmpk to Biab RealBand input.

It might clash with some Biab shortcut keys ?

"Another customization that you may want to tweak is the keyboard mapping. The default layout maps about two and half octaves for the QWERTY alphanumeric keyboard, but there are some more definitions in the data directory, adapted for other international layouts. You can even define your own mapping using a dialog box available in the Edit->Keyboard map menu."