Songza is a free music streaming and recommendation service for Internet users in the United States and Canada.Stating that its playlists are made by music experts, the service recommends various playlists based on time of day and mood or activity. Songza offers playlists for activities such as waking up, working out, commuting, concentrating, unwinding, entertaining, and sleeping. Users can vote songs up or down, and the service will adapt to the user's personal music preferences.