Mine makes a little music sound, and when I hit the "stop" button it makes a different music sound. If I hit it at just the right time, it makes a nice melody by combining both sounds. I recreated a similar sounding one to it here.

beepbox.co project with the following melody:

A ........ ####.... ........ ........
Ab........ ........ ........ ........
G ........ ........ ........ ........
F#........ ....#### ........ ........
F ........ ........ ........ ........
E ........ ........ ........ ........
Eb........ ........ ........ ........
D ....#### ........ ........ ........
Db........ ........ ........ ........
C ........ ........ ........ ........
B ........ ........ ........ ........
Bb........ ........ ........ ........
A ####.... ........ ........ ........