Irish bouzouki Dónal Lunny, who replaced the octave strings on the two lower G and D courses with unison strings, thus reinforcing their lower frequencies. Soon after, on a visit with Irvine to the workshop of luthier Peter Abnett, Lunny commissioned a bouzouki to the specifications of a classic, 4-course Greek bouzouki but with unison strings and a three-piece, partially staved back. Since then, the instrument has been adapted for Irish traditional and other styles of folk music. The original Greek bouzouki was a three course/six-string instrument ("trichordo"). In the 1950s, a four course/eight-string ("tetrachordo") version was developed. The newer "tetrachordo" bouzouki
Demon Strings his world tour promoting his "Version" album, headlining many festivals including Glastonbury, Big Day Out (Australia) and Coachella (US). In 2014, The Demon Strings, were given an official credit for strings on Albarn's debut solo studio album "Everyday Robots" and have featured in several live performances from Albarn promoting the album, including "The One Show". As of the release of Damon Albarn's Everyday Robots, the group has consisted of Stella Page, Isabelle Dunn, Ollie "Oli" Langford, Alice Pratley, Kotono Sato and Antonia Pagulatos. Isabelle, Stella and Antonia all featured on the Demon Days album by Gorillaz prior to the formation