The Untied Knot is London-based instrumental duo Nigel Bryant (electric guitar & synthesizer) and Matt Donovan (drums, percussion & synthesizer) who play improvised music. Their approach to free composition fuses elements of psychedelic rock, drone, electronic and folk musics.

The group’s sound has evolved from acoustic song-based forms - "Sketches for a Lost Summer" (2009) adding more electr(on)ics on “Rien n’existe” (2012) to the electrified drone-rock of “Description of a Flame” (2015) - an album consisting largely of studio improvisations recorded at Press Play Studio in London with Stereolab drummer, Andy Ramsay at the controls.

These albums, released on the duo’s own Sonic Imperfections label have received airplay on BBC Radio 3 Late Junction, BBC6 Music Freak Zone & Gideon Coe and NTS Radio in the UK, Canal Extremadura in Spain and on WFMU Shrunken Planet in the USA.
Rough Trade described the album “Rien n’existe” as “quietly brilliant".