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
Strings (band) led them to an appearance on the show's second-season finale, airing on Pakistan's Independence Day (14 August 2009), in which they performed ""Titliyan"". In November Strings released the ""Titliyan"" music video, which did well on local music charts. In June 2010 Strings signed a one-year partnership with Abu Dhabi-based Etihad Airways as its brand ambassadors, promoting Pakistan in the global market with the band’s music. Peter Baumgartner, chief commercial officer for Etihad Airways, said he was "looking forward to witnessing how the Etihad brand name reached across the world through the music of Strings." Vocalist Faisal Kapadia said, "It is