This blog entry is an example of the "long-tail" economics model that is worrying recording label oligarchs and loosening their stranglehold on music distribution.
The labels of course point to "illegal" file sharing as the source of their problems (i.e. falling sales and ergo profits) and has them scrambling to influence lawmakers in order to protect their cash cows.
If the stats in this blog entry are representative of the general trend, it's evidence of how far off the mark the labels are. If the situation gets desperate enough for them to try this system, perhaps it will end the cacophony they've been marketing as pop music in recent years. (We can only hope.)
In the meantime, perhaps Ukrainian and other ethnic musicians should take note, and heart.