Pandora Radio is an excellent app if you like to listen to music. You can choose from just about any genre. For example, if you are an Elvis Presley fan, you just type in his name and a radio station comes up that plays his music. But that's not all. That Elvis station will also play other music that sounds similar.
If you hear a song that you love but don't remember who's singing it, Pandora provides a short bio on the musician or band. This is perfect for a quick stroll through history or even on a new artist that you have just heard for the first time. The free version has ads but you can pay for the premium version and remove the ads.
Bottom line, Pandora Radio is the best free music app out there.