Apple Inc is expected to unveil new iPod music players — and possibly price cuts — at a media event next Tuesday but may not launch a long-awaited update to its MacBook laptop computers until a later date.

Apple, which also makes iPhone mobile devices, e-mailed reporters an invitation to a September 9 event entitled “Let’s Rock,” which has an image of a man jumping in the air while listening to an iPod, with the words “playing soon.”

No further details were available from the company, which often sends provocative invitations to events that end up being product launches. Creating an allure around its brand has only helped drive Apple’s market capitalization above Google Inc, despite fears about the weak U.S. economy, which is slowing consumer purchases.