Before answering the questions, please watch this video demo: http://vimeo.com/filipecalegario/sketchumentprototype
sketchument is an environment for experimenting and creating musical interactions on iPad.
The interface can be entirely built by user by placing, resizing and connecting touchable, gestural or tangible inputs to musical outputs.
The app is under development and this video presents a preliminary version of its prototype.
Answering the questions, you are helping me improving my research and if you want you can provide your name and you will be present in the Acknowledgements section of my thesis! =D