From the late 90s to 2003 I used BIAB on mac extensively as a composing & practice tool. In part it was great as a basic tool, though on the other hand it was frustrating in the way that PG music treated Mac users as second class citizens. Unfortunately it was more or less accepted by Mac users that BIAB was fundamentally a Windows application that had partly been ported to Mac, presumably to increase the cash flow without too much effort & outlay.

After not looking at BIAB for many years it's disappointing to drop by and find that PG Music still have the same unfortunate attitude to Mac users. That's a shame. So for me to upgrade BIAB is pointless exercise.

In reference to your playing live, maybe you should explore Logic Pro and Mainstage. I'm under the impression that what you're doing with BIAB is available there, possibly a great deal more actually.