StarDestroyer.Net BBS

Whilst bored I decided to start composing some music using the GHMix program that ships with Guitar Hero 5. This is all well and good, except that there's no way I can see to actually convert it into some kind of file and transfer it to my PC. As such, are there any similar programs on PC, ideally ones that are similar to use (i.e. select type of instrument, place notes, specify how long each one goes for etc etc)?

Freeware is also ideal of course. I've heard of Garage Band on Macs, but I've never used it.

I'm not familiar with the program you mention, but GuitarPro may be the sort of thing you're looking for. I think they have a demo, try it and see if it's the kind of program you need.