This is a first generation app that supplies old skool beats with 808 tones at 110 BPM to freestyle rap over, there is 8 old skool beats to choose from and you can also mix and match beats.The main objective is to choose an icon to start the beat and you bust your best rhymes.This is not a tool to create beats (there are some awesome beat making apps in market)stay on the look out for the next version with new beats and features.