After messing a around bit with entry-level composing software and a cheap, crappy Casio keyboard since about '95, I started making module music in late 2000. Impulse Tracker was the weapon of choice, Alpha Centauri the chosen handle - later shortened to Alpha C. Over the years my work has had a strong focus on house, techno and other electronic genres. Today, I'm still using tracker software (Schism Tracker currently) for pretty much all of my stuff.
Aside from doing the occassional tune, I'm running the tracker group/label Chimera Music
, hosting the weekly one hour compos at the #modulez IRC channel (EsperNet), and being active as a demoscener in various ways.