Arduino Sound Sensor Equalizer

Hello, I have recently acquired a small sound sensor (it has pins for ground, 5V, and OUT) and would like to make an equalizer type device with my arduino and two LED strips in parallel. I aim to make it simple - to pulse the lights at the beat of the music. I am unsure how to start and how to program it - any help appreciated.

AFAIR there exist multi-channel audio analyzers, ready for use with microcontrollers. Dunno remember details, though :frowning: