This title was my most favorite thing of E3 this year and I'm loving how Mark says they want to release the game.
For this kind of title I can see it evolving as it's out in the wild, with new features being added to improve the experience for all over time.
I think MM have kind of already shown how the music creation will work, with their demo from the PS4 announcement in Feb 2013.
Moving your DS4, Move, Phone or even have the camera track your hands perhaps playing virtual instruments and then putting that into your game or whatever you're create or adding to. It would obviously make sense for them to make it work in a way that anyone can use it, just like they're trying to make every other part of the game work like that.
That initial collaborative performance shown in Feb 2013 seems like a really great way to break the walls down between the world inside the game and the player.
Watching their streams on Twitch gives a tonne of insight into the game and how it will function, for those that would like to catch up and haven't seen anything you may be interested in watching Media Molecule's videos:
http://www.twitch.tv/media_molecule/profile
In case anyone wondered Mark has stated in the 30th of October stream at Quantic Dream's Studio, at around 1:10:00 in that there is a campaign to the game.
Much like LBP has Media Molecule created levels, but MM haven't said too much about it yet.
Seems pretty likely it would be an adventure, based around your Imp, which you can customize. Apparently the Paris Games Week show from MM was a bit of a taster of how the campaign could work.
I love how this game is coming together and the potential for what players will get to experience, along with what creatives and collaborative types could do sounds like it's going to be immense.
I think Media Molecule are listed as going to Playstation Experience next month, maybe they'll talk about the Beta and when that could start.
Personally I'm very excited for this title (not going to call it just a game, because it seems like it's way more than that).
