Warner Music revealed its financial results today - admitting more expensive tracks just didn’t sell as quickly. As we know, iTunes now lets labels charge more per track, if they so choose.The effect? Warner admits digital revenue growth in the last quarter of 8 percent compared to 20 percent in the previous year's corresponding quarter.“This is in line with an industry-wide slowdown in which year-over-year “digital track equivalent album unit growth” dropped to 5 percent in the December quarter, after being at 10 percent in the September quarter and 11 percent in the June quarter,” we’re told by t
