Conversation so far:
What type of guitars did Fred Frith play?
Fred Frith has used a Gibson ES-345, an old 1961 solid body Burns, a modified 1936 Gibson K-11, and a homemade six- and eight-string double-neck guitar.
Was there anything interesting about Fred Frith's playing technique?
In a typical solo improvising concert, Fred Frith would lay a couple of his homemade guitars flat on a table and play them with a collection of found objects.
Has Fred Frith influenced anyone to use his technique of laying guitars flat and using different objects to play them?
In 1999, Fred Frith was appointed the Luther B. Marchant Professor of Composition in the Music Department at Mills, where he currently teaches composition, contemporary performance, and improvisation.

Question: Anything else interesting about his guitars?
Self-contained rewrite: Is there anything else interesting about Fed Frith's guitars?