With the rise of the Internet, most people have turned to online music solutions, causing many radio stations to lose a significant amount of their audience. In addition to downloading songs on iTunes, on-demand streaming services, such as Spotify, Deezer and Grooveshark, have grown very popular by letting you listen to virtually any track on your mobile phone, provided you pay a monthly subscription.
While these services are very convenient, radios are essentially different in the sense that they play a specific genre without allowing you to make your own playlist. Pandora has tried to recapture this analogue radio concept of letting you pick the genre but not the songs, as it automatically generates playlists based on an artist, genre or composer you select. Songza takes the concept even further: instead of asking you to pick a genre or an artist first, it analyzes context and suggests playlists accordingly.