Not sure what point you're trying to make there, Rob - the lack of lead sheet and notation IS a difference between the Windows and Mac versions - despite being charged the same for each version.

Musescore is pretty good, BUT it won't run in sync with BIAB, so it's a bit of a kludge to play a backing in BIAB and trying to keep Musescore somewhere close to where BIAB is.

Why should BIAB leave notation to others? It's already in the Windows version. And most other DAW-type programs have very strong notation (eg Logic etc) on the Mac.

I think it is a marketing decision rather than a programming one, and I think (IMHO only of course) that the decision is a wrong one. I think they underestimate the number of Mac users involved in making music, and who would dearly love to have lead sheet and notation capability.

BIAB actually DOES have a sort of half-baked notation - but it's only single stave, and flies by so quickly it's useless as a performing tool. And you can't read ahead, as most good sight readers do. So it's just a token implementation.

We need multi-line notation, plus the ability to print off lead sheets complete with chord symbols.

This has been requested by many people for a long time - and I really don't know why PG Music are ignoring those requests. They would get a lot more sales and upgrades if they included those features.....