Key (instrument) Key (instrument) A key is a specific part of a musical instrument. The purpose and function of the part in question depends on the instrument. On instruments equipped with tuning machines, violins and guitars, for example, a key is part of a tuning machine. It is a worm gear with a key shaped end used to turn a cog, which, in turn, is attached to a post which winds the string. The key is used to make pitch adjustments to a string. With other instruments, zithers and drums, for example, a key is essentially a small wrench used to turn
Institute of Musical Instrument Technology Institute of Musical Instrument Technology The Institute of Musical Instrument Technology is the main professional body for all musical instrument makers, tuners and repairers. It was inaugurated on 24 February 1938 and was incorporated on 13 March 1961. According to its website, the Institute is the only professional qualification covering the whole field of musical instrument technology. Sydney A Hurren was the founder of the Institute. Other distinguished members, past and present, include Sir James Jeans, Henry Willis III and Henry Willis IV, Sir James Blades, David Grover (Bentley Pianos), Matthias Stöckle (Renner), Herbert Norman, John Norman, Alexander Kerstan (Steingraeber