Spotify is a legitimate music service with a vast streaming music library which plays high quality sound instantly. You need to use it to believe it. I listen to it it all the time.
In telling others about it, I neglected to mention that I was successful installing it only by putting it on a PC before using it on iPad, Touch, or Fire My PC is connected to a sound system. I pay the monthly fee of $10 for the non-PC devices.
You may need to sign in via Facebook. If that bothers, keep only information on Facebook which you wan public.