The CM9 music app is available, and looks amazing! It can only be run on devices with ICS though, so anyone running one of the ICS builds want to give it a go? The link for the apk is at the bottom of this page.
http://www.seeingpixels.org/2012/01/cyanogenmod-9-music_16.html?m=1
http://www.seeingpixels.org/2012/01/cyanogenmod-9-music_16.html?m=1