an ethnomusicoligist hey? so am i, in that i study ethnomusicoligy, in fact, my teachers...teach it. And like the assistant director of smithsonian folkways recording, both my tutors have PHDs in music.
im not trying to get into an arguement about it :-(
I think basically as there is no set list of catagories that are neccesarily in the same field, therfore, instruments fit into many groups. e.g. piano: strings, percussion, chordophone etc...
Yeah. It's a bit like a cross between a piano and a harpsichord in a way. With guitars, it's usually the players that are hammered and the strings are plucked.
But seriously, is a harpsichord percussion? If a piano is.... In which case a guitar.... My head hurts.