GB | i.s.m. Subbacultcha

GB is the alias of Danish artist Gustav Berntsen, originally from Copenhagen and now based in London. His music shifts between experimental guitar music, ambient, and dreamy indie-pop, with a strong focus on texture, repetition, and atmosphere. On his debut album Gusse Music (2024), released via Posh Isolation, he builds layered, collage-like compositions where melancholy and pop sensibility meet. Think of a cross between ambient soundscapes and introspective guitar songs, with influences reminiscent of the more experimental edges of indie and lo-fi. A regular in the alternative scene and a growing name in the London underground, GB explores new forms. His work balances between spontaneous improvisation and carefully constructed soundscapes, ideal for fans of experimental indie and atmospheric guitar music.