AMM - Testing

“Testing” moves between noise improvisation and ultrasound, a collaboration between the British collective AMM and Japanese sound artist Sachiko M. The record documents a 2004 performance at the Museum of Garden History in London and consists of a single monolith of hushed textures and noise matter. AMM is one of the foundational names of electroacoustic improvisation: active since the Sixties, they redefined what it could mean to play together without a score, without fixed roles, without a before and after. On the other side is Sachiko Matsubara, who has spent years focused on pure sine waves drawn from loudspeaker test tones.

A work handled with geometric rigor, oriented toward high frequencies often at the edge of human perceptibility. At that stage AMM was active as a duo, with John Tilbury on piano and Eddie Prévost on percussion, and their dialogue intertwines with faint, persistent drones in an architecture that explores the relationship between intention and chance. The single track, running over an hour, emerges from a free, unstructured exchange between acoustic instruments and hyper-minimal electronics: percussive resonances, piano played with restraint, and timbral fields generated by pure sine waves.

The result is a spacious, static flow in which minimal timbral shifts, long tones and tension-laden silences follow one another with no hierarchy. Sachiko M's synthetic emissions find an ideal habitat amid screeching resonances and atonal figures, giving rise to an outcome suspended between a deep listening session and the construction of a cold, inhospitable avant-garde soundscape. The timbral explorations emerge from Prévost's rough string work, which, combined with piano playing close in touch to Morton Feldman's compositions, sketches a bare frame, ideal for the reductionist poetics tied to the onkyo aesthetic.

It's worth stressing that this is not an easily accessible work: AMM works with an idea of improvisation that rejects thematic development, recognizable pulse and fixed instrumental roles. “Testing” thus stands as a radical testament to a sonic practice centered on deep listening and the suspension of time.

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26/12/2025