Trackers are a great way to start!
Good enough for Calvin Harris when he made "I Created Disco", the Wikipedia page says this:
"All recording and producing for the album took place on an Amiga computer with audio tracker OctaMED"
(He had a few more addons too of course.)
I have actually been thinking about making music too - also using OctaMED, but I wanted to know if it was possible to use MIDI to control Multiple OctaMEDs.
(I figure it needs to be a total of four Amigas to get 7.1 out of it...)