I created a song manager that allows a band that plays 4-5 songs every Sunday in a year to manage playlists (averages over 200 songs played per year). There are 52-53 Sundays in a year and the manager uses the number of the Sunday to reference weeks the songs are played (i.e. first Sunday in January =1). The user can manage songs played, when they were played, the playlist for a week over a rolling 52-53 week year, playlists with a certain song in it, and frequently or infrequently played songs.