It seems clear that, at least in the near term, we’ll be getting our music via one of the streaming services. That’s why the startups are geting big valuations. And that’s why the big tech companies are getting ready for the ultimate dance off. From Quartz: An epic battle in streaming music is about to begin, and only a few will survive. Of course, you have to consider that as recently as 2007, CDs accounted for 90% of U.S. album sales. Things change fast in the music-tech space. So the winner of today’s battle may not necessarily be the winner of the war (which is just one of the reasons I’m hanging on to my 8 track tapes).