Hey Kevin,

Sorry, I don’t recall the source. I was fast and loose with it because the overall math works out the same for any counts within a realistic range.

Let’s say there the average song count is 100. The implied price is (average total spending at iTMS)/(average number of songs on an iPod). Pushing the number of average songs up an order of magnitude gives 100 purchases / 10,000 songs = $.01 per song.