Here's another sign that the music industry has shifted from selling songs to selling subscriptions: Warner Music says that last quarter, streaming music revenue passed revenue from selling downloads. It's the first time a big music label has hit that milestone. (Tweet This)

Streaming revenue from the company's recorded music unit, generated by companies like Spotify and YouTube, grew 33 percent in Q2, Warner CEO Stephen Cooper announced during the company's earnings call. Warner says digital revenue grew 7 percent overall — which means download sales from outlets like Apple's iTunes decreased during the same period.