I listen only to taylor swift on repeat - she gets 8 I listen to only one song the whole month - then some obscure metal band from Finland gets 8 I listen to 40 bands equally - they get 20c each I listen to 1 band as 20 other combined - the band get 4$ all the rest split 4. Thats it
Here is the kicker - no aggregation and averages for millions of users - my money goes only to the people I listen to in whatever ratios.