OK. Forgive me all you people who kindly answered my Music Composition Software thread, but I would like to narrow this down to what can be used on a Mac, since at the end of my other thread, it was suggested that a lot of the posts could be eliminated as not being useful for Apple Macs.

If you would, I'd greatly appreciate it if you could just list the software you know will work on that computer type, as it's the one my friend's daughter is getting.

Thank you so much for your help!

-Ellen