Harmonix co-founder Alex Rigopulos has said that you won't be able to make your own music in Rock Band 2.
This is a key feature in rival game Guitar Hero World Tour, but Rigopulos said it was the sort of mechanic Harmonix would rather take time over than rush.
"We really felt like we wanted to do it right," Rigopulos told Associated Press. "We're taking a radically different approach to that problem. It's something we wanted to take more time to do it right.
"It's actually something we're not focused on in Rock Band 2. We're really focused on other areas related to the music and bringing the community together."
Rock Band 2 was unveiled earlier this week and will let you carry downloadable songs between the first and second game as well as make good on hordes of fan feedback to expand the party and online options.
There will be the usual update in instrument peripherals, too, although the existing set will be compatible.
All that plus more songs; the first indications point to "Give It Away" by Red Hot Chili Peppers and "Ace of Spades" by Motorhead leading the charge.
Rock Band 2 is due out in September across America as a timed exclusive for Xbox 360. Other platforms are to follow.