Effective period / Period of releases: 2003

Members: Trey Gunn, Pat Mastelotto

U.S. experimental instrumental duo of touch guitarist Trey Gunn and drummer / percussionist Pat Mastelotto — who originally formed as Rhythm Buddies during the King Crimson "Happy" production rehearsal in May 2002. In 2003 the duo renamed the project as TU (pronounced '2'), and recorded further releases. The Rhythm Buddies debut was also subsequently rebranded as a TU release upon reissue and as download. During 2004 the duo became the quartet KTU, with Finnish accordion player Kimmo Pohjonen and sampler Samuli Kosminen. In 2023 the duo Tuner (German touch guitarist Markus Reuter & Maselotto) combined with Gunn as the trio Tu-Ner.