Capo Capo A capo (short for "capodastro", "capo tasto" or "capotasto" , Italian for "head of fretboard"; Spanish: " cejilla" or "capodastro"; French: "capodastre"; German: "Kapodaster"; Portuguese: "capodastro", Serbo-Croatian: "kapodaster"; Greek: "kapotasta") is a device used on the neck of a stringed (typically fretted) instrument to shorten the playable length of the strings, hence raising the pitch. It is a common tool for players of guitars, mandolins, mandolas, banjos, ukuleles and bouzoukis. The word derives from the Italian "capotasto" which means the nut of a stringed instrument. The earliest known use of the term "capotasto" is by Giovanni Battista Doni who,
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