Messing around with live radio

Trying to figure out how to broadcast a live radio program. So far I've figured out how to broadcast my voice, and I can broadcast music, but not at the same time, without labourously switching inputs. There's something basic I'm missing - will keep futzing with it. In the meantime, here's the caster.fm player for Clean Nice Quiet. I'm about to spin some tunes at this late hour, so if you're not doing anything, tune in. I won't be chattering because see above, but I'll play some songs and experiment with the Mixxx program's crossfader. Click here to listen. I'll also put the embed player permanent up at the top of the blog's desktop page.