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festival between worlds & hills

The 2026 lineup is set! Tickets are now available in our shop.

4–6 September 2026
Holdenweid, Hölstein CH

We’re looking forward, along with you, to the second edition of the Between Mountains festival at Holdenweid in Hölstein – this time spanning 2.5 days in September, with camping and, of course, plenty of musical highlights.

the lineup is set · discover now

See you soon – amongst the hills.

what is between mountains?

Born from the idea of bringing the concept of the Detect Classic Festival from Germany to Switzerland, we have been organising Between Mountains – a festival in Hölstein in the canton of Basel-Landschaft – in collaboration with kfka – Kollektiv für kulturelle Aufgaben since 2025.

We will be enchanted by ensembles, building castles in the air with live music and dancing into the evening like light and fog through electronic sounds. We will explore classical and ambient, electronic and contemporary, avant-garde, beats, rhythm, spatial acoustics and blur the boundaries between open-air concert, rave and philharmonic orchestra. A weekend full of curiosity, inspiration and escapism at Holdenweid in Hölstein.

between magazine

who makes it possible?

The Between Mountains is a cooperation between Detect Sounds gUG, Detect Classic Festival Schweiz and kfka and is generously supported by public funds, foundations and patrons.

Many thanks to our funders, cooperation partners, and all other supporters who prefer not to be mentioned by name: