Iztok Koren, born in the village of Beltinci in Prekmurje, a social worker by profession, is a Slovenian multi-instrumentalist who currently lives in Ljubljana. He began his musical journey in 2000 with the dynamic-playful-melancholic post-rock band Škm banda, continued with the loud-expressive-chaotic post-industrial noisecore duo Hexenbrutal, achieved wider recognition with the imaginary-dreamy freak folk trio Širom and, in addition to other occasional musical projects, during the “lockdown” he also created an intimate-minimalist-zen solo project under his own name. In 2024 he founded the international trio Na tej strani nebes with fellow members from Belgium, and in 2025 a duet with Polish guitarist Raphael Roginski.

Iztok also creates music for theater, dance performance and movies. He collaborated several times with theater director Mirjana Medojevič and with dance choreographer Matjaž Farič and he made music for Petra Seliškar's movies Mountain won't move and My summer holidays.

Iztok plays banjo, gembri, balafon, kalimba, percussion, drums, steel drum, guitar, synthesizer, morin khuur and effects.