drumbit - A very easy to use drum machine.
Loopz – Best Drum Loops! - Loopz – Best Drum Loops!
Type Drummer - Drum by typing
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.
Sampulator - Make (and record) beats on your keyboard
Drum Loops for Guitar - Drum Loops for Guitar is one of the reliable applications to design highly accurate BPM tunes used and tested by many professional musicians.