Music. As well as being fun and a joy to play, it should also be in tune - with the Tama TDK10 Drum Key this should never be a problem. Its sturdy, ergonomic shape will allow you to quickly tune your drums - perfect for the everyday drummer or percussionist. Whether you're setting up for a gig, preparing for home practice or tuning/replacing your drumheads, the Tama TDK10 Drum Key is an essential tool for any drummer's stick bag.