Google has announced Play Music All Access, an expansion of Play Music that gives you access to millions of tracks in Google's music service.

The new music subscription service is as much about listening to music as it is about music discovery, with recommendations based on the music you've been listening too.

You'll be able to turn any song into a "radio station" or playlist, with All Access populating the list in the background to give you a never-ended music stream.

Of course you'll be able to get to All Access through your phone, tablet or online.

All Access is priced at $9.99 in the US, but there's a 30 day free trial to get things started. It launches today in the US, before rolling out to other territories, so you can head into Google Music and try All Access right now. 

The announcement was made at Google I/O 2013 in San Francisco.

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