I would just write this straight into a front page story, but unfortunately, I don’t actually understand what a tracker and a sequencer are. I’ll have to do a bit of reading on Wikipedia first.

Anyway, if you know what they are, there’s a decent-looking article about free ones at Create Digital Music. Some only free whilst in beta, so they’ll be wanting money, but in the words of Homer Simpson, “yeah, but that’s not ’till later, right?”