Equalizer LWP 1.2
the author of this app says:
This Live WallPaper (LWP) displays a simple equalizer-like animation.
Settings : you can configure the colors, the numbers of lines and columns, and the speed.
-Android 2.1 (or +) required
-you have to install it from home screen; don't run directly
-Spica and Wildfire 2.1 don't currently support LWP