Feb 14 (Reuters) - Spotify ( SPOT ) is considering

charging up to $5.99 a month on top of existing subscriptions

for a new music streaming service that will include

higher-quality audio, remixing tools and access to concert

tickets, Bloomberg News reported on Friday.

The company might roll out the "Music Pro" tier this year,

the report said, citing sources it did not name.

Spotify ( SPOT ) is still working through the details, and prices for

the new service would vary by geography, with the cost lower in

less-developed markets, Bloomberg said.

A Spotify ( SPOT ) spokesperson said by email that the company cannot

confirm speculation around the potential details or feature set.

The new service, which would use artificial intelligence for

some features, would allow subscribers to mix together songs

from different artists, the report said, adding that the company

has held preliminary talks with major promoters and ticket

sellers.

In the United States, Spotify's ( SPOT ) largest market by revenue,

it charges $11.99 per month for its individual tier, which goes

as high as $19.99 for the family plan that can house six

members.

Spotify ( SPOT ) recently signed multi-year deals with Warner Music

Group ( WMG ) and Universal Music Group for recording

and publishing music.

CEO Daniel Ek has said the company would have personalized

offerings, including a premium tier called "superfans of music."

The Swedish streaming giant forecast 678 million monthly active

users for the first quarter, in line with estimates of 679.4

million.