PocketSynth 1.6

the author of this app says:

Musicians, or anyone who has ever wanted to write music, will appreciate this application. It even makes a fun toy for those with no musical talent whatsoever. There are two panels that represent tiny ebony and ivory keys and a box that can be checked to change the keyboards to bass. Change the beats per minute and the duration of each note. You can record your musical annotation, edit it, play it and save it.