Boundary Scan

Periferiya are a Russian-Swiss sextet—Boris Shershenkov, Kurt Liedwart, Mikhail Myasoedov, Tomas Korber, Christian Kobi and Christian Müller—assembled by Müller for the 2019 Hors Normes festival in the remote Vallée de Joux on the Swiss-French border, and recorded together in the same week. Boundary Scan is their debut, six long-form tracks of textural, borderline-drone electronics released as the 93rd catalogue entry on Kurt Liedwart’s Mikroton Recordings, a label that has spent fifteen years championing the most uncompromising corners of electro-acoustic music and IDM.

The album title is the record’s quiet joke: boundary scan is a method for testing the interconnections on circuit boards, and the track titles are its diagnostic signals—TDI (test data in), TDO (test data out), TMS, TCK, TRST—the whole thing framed as an instrument probing the edges of sound itself. Structurally, the album honours that patient engineering: opener TDI runs a full fifteen minutes, and the group’s restraint throughout is remarkable, textures unfolding with the unhurried logic of a piece of equipment coming online.

It’s in those textures that the sextet’s six distinct voices become audible. TDI eases in on granular hiss and low, swelling drones, Kobi’s soprano saxophone ghosting through the electronics like a signal caught between frequencies; TDO tightens the focus with crisp microsounds and an almost-funky rhythmic figure, the closest the record comes to a pulse. The compact TMS (5:29) is a small marvel of concentration, and the fourteen-minute TCK is the album’s beating heart—slow, tidal layers of reverb-heavy tone that build and dissolve without ever resolving. Closer BSDL sends the listener out on a whisper of near-silence, all surfaces and air.

Boundary Scan is not an easy listen, and it isn’t trying to be. It makes no concessions to hooks or momentum, yet the reward is in the surrender: six musicians from two traditions meeting in a forest on the French border, testing what sound can do when given time. For anyone with patience for music that works at the speed of texture, this is a quietly triumphant record, and a superb calling card for one of electronic music’s most stubbornly interesting labels.