> Did you watch the video? While I don't play violin, my wife's a composer (and plays viola & cello), and that 'electric violin' portion of the video was probably the most cringe-worthy part of the video.

I agree.

I'm a musician and compose. I also used to do live performances and loops in my more "experimental" music. This is an expensive toy for such limited use.

His target audience can't be classical musicians, because of all the nuances that go into physically playing an instrument. It doesn't take a lot of knowledge to realize this, so it makes me wonder why he or who in the world would suggest this. I've played simple virtual instruments and VSTs like this, and the dynamic range and capability is extremely limited. The only virtual piano I would play would be Synthogy Ivory. The keyboard on the Invisible Instrument app didn't even have more than one octave, as far as I was able to see.

Students wanting to learn an instrument would be hindered by this. Just for string instruments, learning how to tune and hold it, posture and the tactile dynamics is a world of difference. This toy would only contribute to acquiring bad habits, as you can tell when the creator begins to "play" the violin. Having said that, why would this app be for classical musicians?

If he incorporates a looping device or a sequencer into it, there might be a use for this within the rock/hobbyist/experimental crowd.

I don't like saying this, because it probably sounds really pretentious and/or condescending, but this is most likely for the non-musician; the person who is not interested in music. That is, it's meant for the person who has some spare time and spare money, or kids who get money from their parents and don't mind spending their money mindlessly.

Lastly, I think the only positive I can see in this is that it might be able to teach you theory. Otherwise, once you factor in the cost of the Wii Remote, it's an expensive toy that doesn't do much except trigger cheesy synthy sounds through Bluetooth.