yeah, it's a good idea but it still would have been the same as the harp. the harp would have been great if you played it rather than strummed it but could see the same thing happening if it was a violin.
I think they should have made to harp more intuitive, but I do like the idea of a harp. I think that you should have been able to see which strings up close your hand was on, and you could move your hand on the strings without having it play right away, with a strum button.
think kind of along the lines of ST flute, but it would be a close up of link holding the instrument.