Second the recommendation of Pandora, particularly with its $36 a year premium subscription.
Also check out Spotify. It's invitation-only at the moment but you can usually find a way to get an invitation. It delivers almost anything you could want to hear on demand. The classical selection isn't comprehensive but it's a great way to expand your horizons.
Also check out Spotify. It's invitation-only at the moment but you can usually find a way to get an invitation. It delivers almost anything you could want to hear on demand. The classical selection isn't comprehensive but it's a great way to expand your horizons.