Lala, previously just a compact disc-trading service, has introduced two new offerings to help people discover and buy new music, reports The New York Times.

The site's new offerings include the ability to stream full albums and individual songs online at no cost to users. Users can also purchase full albums - but not individual songs - at prices comparable to those on iTunes or other online music stores.

Lala also lets people download music they already own onto other computers by analyzing their existing music collection. The rationale goes that if a person has already paid for music, which they presumably have if they own it, they should be able to access it anywhere.

Lala's streaming service is the result of a deal between itself and Warner Music Group, which will be paid a royalty for each stream. Download pricing is "dynamic," dependent upon a given album's popularity and other criteria.

The Lala offering flies in the face of much discussion about the future of online music sales and it remains to be seen if Lala can pull if off without raising the ire of its predecessors.