CUPERTINO, Calif. ( TheStreet -- The Apple ( AAPL) rumor mill is spinning again. The consumer tech giant is said to be planning one of its keynote events for Sept. 9, and speculation is mounting that the firm will make a major music announcement. The AllThingsDigital Web site quoted "multiple music industry sources" who said that Apple was planning an event for the week of Sept 7. Apple has often used the week following Labor Day to make major launches so this would not be unusual. Last year, for example, Apple unveiled its new iPod nano and iPod touch on Sept. 9, as well as iTunes version 8. Intriguingly, Sept. 9 is also the launch date for "The Beatles: Rock Band" video game, and there is growing speculation that Apple will unveil the Fab Four's iTunes catalog on the same day. The Beatles' music is not yet available for digital download, but would certainly give Apple's iTunes business a shot in the arm. Apple reach the 8 billion mark for iTunes downloads earlier this year, although the Cupertino, Calif.-based company is not one to sit on its hands when it comes to a new revenue opportunity. The Financial Times recently reported that Apple is even working with music labels such as EMI and Sony Music to stimulate digital sales of albums. Code-named "Cocktail", the project will bundle interactive booklets and sleeve notes with music downloads, and is expected to be launched in September. There has also been talk that Apple could launch its tablet device as early as next month, although recent media reports say that this is unlikely to happen until 2010.