Sony Connect Inc. today formally announced the domestic launch of its new Connect online music store. has licensed more than 500,000 tracks from all major and many independent music labels, as well as exclusive content from such artists as Avril Lavigne, Yeah Yeah Yeahs, Snow Patrol, and Toby Lightman, notes the press release. The service, which is not available to Macintosh users, will offer content ala carte-style, with singles starting at US$0.99 cents, and entire albums starting at $9.99.