drumbit - A very easy to use drum machine.
Loopz – Best Drum Loops! - Loopz – Best Drum Loops!
Sampulator - Make (and record) beats on your keyboard
Piano Melody Free - Piano Melody app allows you to listen to your favorite songs from a vast library of more than 1000 songs of different eras and genres.
Type Drummer - Drum by typing
Drum Loop Maker - Drum Loop Maker provides an opportunity to tune your musical instrument in a proper sequence.