Yeah, I miss the old Play and Sound commands early BASIC had. Recently there was some code posted for setting the vibrator on the device to vibrate at a certain frequency. If I had the time I'd seriously think about making a Class to vibrate at the frequency of whatever notes are within its range and make some type of Midi Player through the vibrator if the same capabilities aren't there for the speaker.
They can make music with old Floppy drives, should be possible with a vibrator.