GB, Gustav Berntsen, is an artist from Copenhagen who crafts texture-heavy, adventurous guitar music cut with a pop sensibility. Today, GB announces his second album, Herzsprung, out 21 August, and also shares the album’s first single ‘Adrenaline’, sending light from a world of zigzagging guitar, bubbly fretless bass, and rolling percussion.

Herzsprung follows GB’s debut record, the collage-based cult hit Gusse Music, which was released on storied CPH label Posh Isolation in 2024 – the final LP the label issued before they shuttered in 2025.

Herzsprung is GB’s most expansive work yet. Written while living in London, the Copenhagen-based singer-songwriter and producer spent weeks cutting up copies of Metro – one of the city’s free newspapers – to form the lyrical foundation of the songs. In makeshift studios, he began bringing these ideas to life.

Where GB’s debut record was shrouded in a downtempo haze, Herzsprung creates a distinct sound that pushes outward: something more melodic, more full-throated, and more assured. The album draws together a wide spectrum of influences; from the groove-driven fusion jazz of the 1970s to Japanese noise-rock psychedelia, anthemic grunge, and outsider pop. There are traces of the alt-pop qualities that GB shares with his Copenhagen peers, but you hear London’s influence too, an urge to stretch rock tradition and break with form.

After finding himself improbably cast in a viral Jaguar ad in 2024, he used the money to book out a studio villa in the Swedish wilderness, joined by a band of trusted musicians. Over the course of a week, the songs — which had previously existed as memos and notebook scribbles  — took full shape through live performance and collective instinct. Tracked largely live to 24-track tape, the result is a record that feels immediate and playful in its execution. It captures the chemistry of an uncompromising band brimming with ideas and welcoming spontaneity.

This September and October, GB will headline shows in the UK and Europe. He’ll also be appearing at Roskilde Festival next month.

Pre-order / pre-save Herzsprung here.