this is the maths behind the music

1. Music calculations
Song
categories
Hot hits current recurrent throwback Up and
coming
Perhour 1 5 5 2 0.5
How longtill
songsrepeat
3 hours 2.5 hours 3.5 hours 52 hours 24 hours
Total songs
needed
6-9 songs 15 songs 18 songs 52 songs 12 songs