Bosca Ceoil - A free, easy to use tool for creating music.
FL Studio Mobile - Create & save multi-track music projects on a smartphone
Zynewave Podium - Podium is a modern digital audio workstation (DAW) for Windows.
Splice Beat Maker - Make and share beats in your browser
Renoise - Renoise is a digital audio workstation.
Type Drummer - Drum by typing