I remember going to see a concert with Kevin Burke (virtuoso Irish fiddler) and Tim Edey (guitarist and buttonbox player - equally virtuoso at both). Good concert, but disappointed not to hear Tim play any of his boxes at all - missed opportunity, I thought. So which would you consider was Tim's "signature instrument"? (Not talking about which make at present.) The concert promoter told me "Tim was just there to accompany Kevin on guitar" - hmmm!