Bouzouki the "tetrachordo" ("four-course") has four pairs of strings. The name "bouzouki" comes from the Turkish word "bozuk", meaning "broken" or "modified", and comes from a particular re-entrant tuning called "bozuk düzen", which was commonly used on its Turkish counterpart, the "saz-bozuk". It is in the same instrumental family as the mandolin and the lute. Originally the body was carved from a solid block of wood, similar to the saz, but upon its arrival in Greece in the early 1910s it was modified by the addition of a staved back borrowed from the Neapolitan mandola, and the top angled in the
Irish bouzouki was introduced into Irish traditional music in the mid-1960s by Johnny Moynihan of the popular folk group Sweeney's Men. During the recording of their 1968 eponymous album, "Sweeney's Men", Andy Irvine also played Moynihan's bouzouki on the track "Johnston". Shortly after he returned from Eastern Europe in late 1969, Irvine met Dónal Lunny – who had been playing guitar up to that point – and gave him a Greek bouzouki he had brought back from his travels. Being left-handed, Lunny reversed the strings and critically, replaced the octave strings with unison strings, thus fundamentally changing the character of the instrument.