Teasdale wasn't short on details in his explanation to Videogamer.com:

We actually want to find a way to for people to create music and express themselves, but when we do we want to make sure that people can sing, or the songs can be longer than three minutes, or that you can have more than 1200 notes, or that you're not tied to some dodgy sample somewhere. We want to make sure it's an authentic experience and it fits on the platform.

"If you want to do a way to let players create and distribute music, you have to go all-in--not just do it as a bullet on the back of a box," the designer elaborated. "We've dabbled around with stuff like that before, with Frequency and Amplitude, and we learned a lot of lessons from it," he added.

"The main one is that you can't do it half-arsed," Teasdale said.