Music Software

Has anyone out there ever used music notation software on the Mac, specifically, OS X? I’m looking at Sibelius, which is very expensive. Demos are dangerous, I tell you. I fell in love with the program before I realized how much it costs…

But as far as I can tell, it’s about the only application that does what I need it to do under OS X. That is: I play my digital piano, it appears as written music on the screen. Simple, right? The shareware apps I’ve tried just don’t work – generally, I can enter a few notes, and then it stops recording. Most other commercial packages cost around the same, and only run under Classic.

I’m open to suggestions, if there’s some middle ground I missed in my search…