Amie Street, the digital music site which made its name with a dynamic pricing model for songs, has signed up Sony Music as its first major music label. It means songs from acts like Beyonce (pictured), Outkast, Kings of Leon and The Ting Tings are now available on the site as well as plenty of catalog albums.

But the songs will not be dynamically priced like the rest of the music on Amie Street which fluctuates based on demand. Sony’s songs will cost 69 cents, 99 cents and $1.29, much like they are on sites like iTunes and Amazon.

In an open letter to the Amie Street community the site’s owners said:

We know this is a big change, and we’re confident that it will make Amie Street a better place for you to discover, download, and share new music. We spent hundreds of hours asking members of the Amie Street community whether this kind of catalog belonged on the site, and for most of you the answer was a definite Yes.

But co-founder Josh Boltuch added that the deal with Sony allows the option to experiment with dynamic pricing at its discretion if the music company wants to try it with an individual artist or album release.

In the meantime Amie Street, which was founded by Boltuch and his fellow Brown University graduates, is in middle of raising its Series B round of funding. You may recall that Amie Street closed a Series A round of financing led by Amazon.com in August 2007.

(Photo: Reuters)