Well I like the concept of this program (purchased it) but I dont think it plays friendly with Win7 on a mac using parallels because I just about thew my mac against the wall! hehe. I was just doing the timing thing and I SWEAR i was keeping timing with it but for the most part all you could hear was that annoying metronome start banging away when you are off beat. And then THAT threw me off because you couldnt even count to yourself when that was happening. But if I can get it working then I think it is a pretty neat program. Almost like a game of sorts.