The reason none of your haptic controllers played tunes is because the programmers never got to have fun with it, not from a lack of ability.

Go look at 3D printers, most of them use their motors to make little beeps and jingles as feedback to the user. I even have custom gcode that gets added to every print so a tune is played when the print is done. That's actually useful because I don't need to wonder whether it's done and check on it like a pot that's about to boil