You could have downloaded MenuMusic 1.0 for Mac from our software library for free. The program lies within Audio & Video Tools, more precisely General. The actual developer of this Mac application is Jiri.
From the developer:
MenuMusic is simple background mp3 player for the Mac. Runs in background Random and Repeated playback "Drag & Drop" playlist creation Allows multiple playlists to be selected Playlists are saved in preferences file