FL Studio Mobile - Create & save multi-track music projects on a smartphone
Gonic - music streaming server / free-software subsonic server API implementation - sentriz/gonic
Splice Beat Maker - Make and share beats in your browser
Swing Music - Beautiful and fast music streaming server.
Sampulator - Make (and record) beats on your keyboard
MusicDB - MusicDB is a music manager, server and player that focus on music.