It's your lucky day!

I know you've all been waiting for this moment. I'm finally posting some music for you guys to critici... er, critique. It's a 12 bar blues I played on my fretless bass. I recorded in two passes: first the rhythm, and then the melody. I was just playing around, finding out if I could manage a decent chord progression on the bass, and I decided it might be fun to get some opinions. It's at my DMusic page. Comments on the technical side would be appreciated as well; I'm always ready to improve my recordings.