Given the task definition and input, reply with output. Generate a question which can yield the answer mentioned in the input. Generated question must be answered by the answer provided in input, without using any extra knowledge.

Context : Francesco Morone (born June 6, 1956, Lanciano, Abruzzo, Italy) known as Franco Morone, is an Italian guitar player, teacher, composer and arranger specializing in fingerstyle technique.
Answer : guitar
Which musical instrument has been played by Franco Morone?