SoundGrail - SoundGrail Music App designed for pianists, guitarists, and DJs.
Drum Loop Maker - Drum Loop Maker provides an opportunity to tune your musical instrument in a proper sequence.
keezy - A colorful soundboard. Play with music.
Loopz – Best Drum Loops! - Loopz – Best Drum Loops!
Splice - Music creation, collaboration, and sharing made simple.
LiveInLoops - LiveInLoops is a rich-featured application that provides online coaching for drummers.