What are some alternatives?
When comparing ridetheclown.com Saver2 and Google Play Music, you can also consider the following products
Pithos - pithos is a daemon which provides an S3-compatible frontend for storing files in a Cassandra cluster.
Serendipity by Spotify - Map shows when two people play same song at same time
Elpis - Elpis is a free and open source Pandora client for Microsoft Windows.
Last.fm - The world's largest online music service. Listen online, find out more about your favourite artists, and get music recommendations, only at Last.fm
Hermes - Pandora Client for OS X
Pandora - Pandora Radio is a free (ad-supported) internet radio founded in 2000.