This tutorial adds to the drums and it will probably help your drum kit. All you need is 4-6 nickels and some tape. This will not void your warranty. This is more of a Mod than a repair, but it basically fixes randomly missed notes when you swear you hit it exactly right. Make sure the coins are completely fastened down. Rock Band is the interactive game that allows you to use to play along with music and songs using the controllers of drum kit, microphone and guitars.