The one obvious thing is that the devices are so good now that you can also see their limitations extremely well.

I started thinking, my gosh, all this sophisticated software for measuring how Yo-Yo plays, and how he moves and this technique of the bow, I should be able to use similar techniques for measuring the way anybody moves, and so somebody who is not a professional or a trained musician, I should be able to make a musical environment for them.

Music seems to stimulate more parts of our mind than almost every other activity. It combines more parts of our minds. It synchronizes our minds. It allows people in groups to do a non-verbal immediate activity together.

The barn where I work, it's only 15 minutes or so from Harvard square, so It's very close to the center of Boston, but it happens to be a total oasis. It's completely quiet in there.

I listen to a lot of music that teenagers are listening to because I'm around them.

Over my career, I'd say the last 25 years; we've gone from music and computer being for 10 people in the world to having personal computers, to now being able to do amazing things on your iPhone, or with Rock Band. So, right now there's enormous capability with technology in our devices that everybody has access to.

That's the definition of popularity. Something that literally resonates with many, many people.