Who plays 'em? I do *points to his own signature, plus his avatar ^^*
Here are the music games I am either currently wasting my time with, or have wasted time with in the past:
-DANCE DANCE REVOLUTION: Duh.
-BEATMANIA: 5-key because IIDX is...well, scary. And expensive. Addictive as Hell and great if you're actually starting to get bored with DDR (it's possible)
-PUMP IT UP: Whenever I feel like driving 20 minutes to an arcade to get humbled, I play Pump it Up. Great game if you can stand the music (which I can :P )
-PARAPPA/UM JAMMER LAMMY SERIES: Weren't these great? Parappa 2 wasn't nearly as good as UJL but it was still fun.
I want to try Guitar Freaks, Pop N' Music and Vib Ribbon pretty badly. Oh, and Punch the Monkey (japanese PSX)