Yes, and for some time: https://support.google.com/googleplaymusic/answer/1075570?hl...

When Google Play came out, that was all that they started with, and once enough people started using it, they started selling music on it as well.

I initially started using it as a way to easily sync music onto my phone, since it has a LRU of all your played songs, as well as any albums you mark explicitly for download.

Do you remember mp3.com’s Beam It service?

http://www.freedomworks.org/content/case-missing-copyright-l...

How times have changed.