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
Irish bouzouki is closer to the D3A3D4 tuning of the Greek trichordo bouzouki than is the guitar-like tuning C3F3A3D4 used on the modern Greek tetrachordo, and is particularly well suited to a modal harmonic approach to accompaniment as used in Irish traditional music. Alec Finn, playing a Greek trichordo bouzouki, uses the traditional D3A3D4 tuning with the octave pair on the low D course changed to unison. Amongst many luthiers and musicians the Irish bouzouki is considered to be part of the mandolin family, but for others this new family of instruments is a separate development. In actuality, the mandolin and lute