How do I make music?

I'm looking for some music software so I can make my own tunes for my game.

Preferrably free.

Get Sibelius (torrent it, the actual thing costs around £100 I think)
But you'll need a bit of music knowledge to be able to work it.
It's amazing though.

Fruity Loops, Ableton, Reason 4, Cubase blah blah. There's so much.

Probably a stupid question but is there anything that doesn't require me knowing anything about music( I can play guitar, badly).

If not is there like a site or something to teach me...you know.

You need to know how the program works and what shit does, which kinda constitutes knowing music a bit.

Just google your program of choice + tutorial.