Uh, OpenTune.

Its basically all of youtube music, accessed via proxies, but works roughly like spotify, i think it actually pulls playlist album and artist data from there.

Oh and you can just hit a button and download any song.

And you don't need any kind of networked account. You can have a local account though.

... downside is it is slightly slower than Spotify.

... why does anyone give any money or ad time to any corporation?

You don't have to.

EDIT:

Just set up WayDroid on my linux OS, purely to just use this currently APK only app.

Total elapsed time: Under 10 minutes, and thats so high because it took me 8 of those 10 minutes to download WayDroid, at the blazing speeds of nearly 10 MiB/s!

Uh yeah anyway now I have no advertisement Spotify, basically, on my desktop as well.

Also I was wrong:

Its not slower than Spotify.

My phone is just a piece of crap.