How many songs? how many tracks? on 2GB ibook g4

So my ibook g4 has been broken for years, but I finally found a guy to fix it. Not sure if it has a max memory of 2GB, but I think that is all it will hold. I want to use GarageBand to record music, both for tracking instruments, and for mastering from a reel to reel machine. Is 2GB enough?????