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
Berlin Musical Instrument Museum Berlin Musical Instrument Museum The Berlin Musical Instrument Museum () is located at the Kulturforum on Tiergartenstraße in Berlin, Germany. The Museum holds over 3,500 musical instruments from the 16th century onward and is one of the largest and most representative musical instrument collections in Germany. Objects include a portable harpsichord once owned by Prussia’s Queen Sophie Charlotte, flutes from the collection of Frederick the Great, and Benjamin Franklin’s glass harmonica. The Museum was founded in 1888 at the Royal Academy of Music in Berlin from a collection assembled by Philipp Spitta and Joseph Joachim. Thirty-four instruments from the Museum