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
Musical Instrument Museum (Brussels) This museum is served by Brussels Central station and Parc/Park metro station on line 1 and 5 of the Brussels metro. Musical Instrument Museum (Brussels) The Musical Instruments Museum (MIM) (, ) is a music museum in central Brussels, Belgium. It is part of the Royal Museums for Art and History and internationally renowned for its collection of over 8,000 instruments. The MIM collection was created in 1877 and was originally attached to the Royal Conservatory of Brussels with the purpose of demonstrating early instruments to students. It consisted of a hundred Indian instruments given to King Leopold II of