Takes on iTunes and Spotify with 19 million songs for £9.99 a month.
The service is initially launching on the Samsung Galaxy S III in Germany, France, Spain, Italy and the UK, and is based on the technology acquired when Samsung bought mSpot, just weeks ago.
Actually, Music Hub has been around for a while, but as a traditional iTune style song library. This is a major re-boot that positions Samsung to take on Spotify, iTunes, Google Music and iCloud.
Music Hub will be offered for free and in a Premium version. The free version, powered by 7digital, is for buying a la carte and lets users listen to 30-second previews of all songs. Purchased music is stored in the cloud and and can also be stored locally.
Premium users pay EUR /£9.99 per month) get to upload and access their entire music collection anywhere, have unlimited streaming and can radio stations based on the artists they like.
And there's an iCloud style feature called Scan & Match Cloud Locker that will recognise songs and play them from the cloud.
Any unmatched songs are directly uploaded from the library, and there's 100 GB of storage for all unmatched songs.
Users can play from a mobile client or from a Web Player at www.musichub.com.
"When you ask yourself, 'what do I want to listen to?' there is now one simple answer, for every mood, every place and everyone," stated TJ Kang, SVP of Samsung Electronics' Media Solution Center.
"With the new Music Hub, we're bringing the joy back to music -- listening, collecting and sharing."
"We believe that today's mobile market must have an open mobile music system – one that offers all kinds of services across different devices. Music Hub removes all the barriers to your music," said Daren Tsui, CEO of mSpot.