Thanks M.Ted; I know the Halkias family (every Greek does, whether a fan of traditional music or not). Indeed, in 1986 I recorded with Petroloukas Halkias - I was in a choir putting down some traditional songs with accompaniment, and I remember how frustrated he was at having to follow the arranger's precisely-specified lines; in the end the arranger gave up and let him have his head, at which point Petroloukas produced sheer magic, and indeed on the record cover he is credited with the clarinet arrangement. I don't know if it is true or urban myth, but John Dankworth is supposed to have said once, upon hearing Petroloukas bending notes in typical Epirus fashion, "now I can go home and smash my clarinet!". Now for the surprise:

Did you know that "Halkias" means "Copper" in Greek? So, we have our own "Copper" family carrying on the tradition in Epirus.