Lots of services, not much choice.
If you have an account on any of the popular music download services you will notice selected tracks labeled as ‘Album Only’, meaning that you can’t buy them individually, only as part of the entire ‘album’. So who’s in control of this activity? the artist, the record label or the distributor?
Stuck in the middle?
Online Music Stores: While some users are split between pay per track versus subscription services, there is a third option which I am not sure what to make of.