Music Hub is free and comes with an impressive 100GB of online storage, compared to the 5GB and 25,000-song limit of Apple iCloud. It uses 7digital's music library and lets you preview and buy tracks from the Hub's built-in store. Helpfully, once you download a track, it now automatically syncs with your other connected Samsung devices. If you use 7digital, you won't have to pay twice for tracks, because previous purchases can also be synced. You can't stream songs with the free version, but they can be downloaded and played offline.
Spotify Premium, which offers a very similar service. It’s also the first time that Samsung and 7digital has offered streaming. If you've got a Samsung Galaxy SIII, you can use the service straight away. More Samsung phones and TVs are due to get it soon, and an iOS version is also in development.