The tech giant hopes including voice recognition to speed up searches will help make the service a success.
Amazon Music Unlimited will have access to tens of millions of songs, and it will be cheaper than its biggest rivals for members of its Prime service and owners of its Echo speaker.
It is expected to be rolled out in the UK, Germany and Australia later this year, although Amazon has not yet released a definite timeline.
The service will cost $3.99 (£3.25) a month for owners of its Amazon Echo speaker and $7.99 (£6.52) a month for Amazon Prime members.
Everyone else will have to pay $9.99 (£8.15) a month, the same charge as US subscribers to Spotify and Apple music.
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