A free program for Android, by q2developer.
With Create Your Own Music, you can compose your own music. You can play it on the piano or any other musical instrument.
It is an application with a collection of samples, loops, and sound effects. You can play all of them on the keyboard or use them as a musical instrument. You can also record your compositions and have fun playing them back.
You can compose a song by using a collection of samples, which are sounds. You can edit a sample to change the pitch or the tempo, or to add a new one. You can record your song and have fun playing it back.
You can use a MIDI to record a song and have a musical track.