Irish bouzouki Johnny Moynihan (apparently in an attempt to replicate the open, droning sound of Appalachian "clawhammer" banjo) first on the mandolin and then transferred to a Greek bouzouki. It was later picked up by Andy Irvine and Dónal Lunny, and quickly became the next thing to a standard tuning for the 4 course instrument. Other tunings used, although by a minority of players, are "octave mandolin" tuning G2 D3 A3 E4, and "Open D" tuning A2 D3 A3 D4. "Open G" G2 D3 G3 D4, is used by some players and has proven useful for "bottleneck" slide playing. The GDAD tuning
Bouzouki the mainstay of most Rebetiko music. It has fixed frets and 6 strings in three pairs. In the lower-pitched (bass) course, the pair consists of a thick wound string and a thin string, tuned an octave apart. The conventional modern tuning of the "trichordo" bouzouki is DD–AA–DD. This tuning was called the "European tuning" by Markos Vamvakaris, who mentioned (but failed to describe) several other tunings, or "douzenia", in his autobiography. The illustrated bouzouki was made by Karolos Tsakirian of Athens, and is a replica of a "trichordo" bouzouki made by his grandfather for Markos Vamvakaris. The absence of the