Sumatra Method marks Émile Zener’s return to the explicitly political terrain he previously mapped as Gunnar Haslam on Quaderno Rosso, but the frame has widened and darkened. Where that earlier work probed European left histories and the afterlives of struggle, this album turns toward Southeast Asia, offering an impressionistic portrait of Indonesia during the 1950s and 1960s - one of the hottest, least understood theatres of the Cold War. Rather than retelling events in documentary fashion, Zener builds what he calls “cybernetic sound collages”: dense, feedback‑sensitive ecosystems where historical materials and synthetic processes continually modulate one another.
The record’s core vocabulary is deceptively minimal: unstable drones, microscopic noises, and scavenged media fragments. Around this sparse toolkit, Sumatra Method constructs a shadowy sonic world. Unsteady, slightly detuned tones act as an anxious ground, over which tiny percussive clicks, tape stutters and radio‑like hiss feel like insects or distant machinery. Into this hum, Zener threads samples from Indonesian VHS horror films, their saturated soundtracks and clumsy foley work bringing a lurid, uncanny edge. Dialog and screams bleed into the mix, sometimes intelligible, more often smeared into texture. Elsewhere, disembodied voices from interviews with CIA officers and Sandinistas surface, offering blunt, chilling testimony about covert operations, anti‑communist campaigns and the cynical calculus of proxy war.
These sources are not deployed as mere atmosphere. Zener treats them as signals in a feedback loop, routing snippets through delays, filters and digital degradation until they both reveal and obscure themselves. A throwaway admission from an intelligence operative might be chopped, reversed and granulated until only a rhythm of consonants remains, but the emotional charge lingers. A line from a horror film, originally scripted for cheap thrills, takes on new gravity when dropped into a bed of low‑frequency rumble that evokes planes, crowds or distant explosions. In this way, Sumatra Method performs a kind of détournement on its archival materials, refusing to separate entertainment from terror, official narrative from haunted subtext.
The album’s narrative arc is oblique but palpable. Early pieces hover in a kind of suspended tension, as if tracking the build‑up of ideological weather before the storm. Textures are thinner, voices more distant, the sense of threat mostly latent. As it progresses, the record tightens. “Jakarta Is Coming” arrives like a rupture: a burst of reactionary violence rendered as sonic event. Swollen bass pulses, jagged noise eruptions and frantic vocal shards collide, evoking both street‑level brutality and the larger machinery directing it from afar. There is a sense of something unleashed that can no longer be neatly contained within national borders or official histories.
By the time the closing piece, “One Day Everyone Will Have Always Been Against This,” unfolds, the focus has shifted from event to aftermath. Here the sound world feels scorched and hollowed out: drones reduced to thin, wavering lines; fragments of testimony looping like broken memory; a recursive title that nods to the way societies retrospectively distance themselves from past atrocities. The track carries an apocalyptic undertow, but it is not spectacle; it is the slow, nauseous realisation that the structures enabling such violence remain in place, that the story is not safely over. In implicating “everyone,” Zener collapses the distance between listener and subject, asking what it means to consume historical horror as ambient texture, and how contemporary comforts are tied to earlier alignments of power.
What makes Sumatra Method so unsettling is its refusal to offer clear footholds. There are no didactic voice‑overs, no linear timelines, no easy catharses. Instead, Zener uses the grammar of experimental electronic music - drones, noise, collage, spatialisation - to stage an encounter with history as unresolved system: inputs and outputs, cause and effect, policy and nightmare, all feeding back into each other. The cybernetic metaphor is not decorative; it shapes the compositional method. Patches are set up so that a change in one parameter prompts unexpected shifts elsewhere, mirroring the way local interventions in Cold War geopolitics produced far‑reaching, often catastrophic consequences.
In returning to politically charged material under the Émile Zener alias, Gunnar Haslam reaffirms a belief that abstraction and critique need not be opposed. Sumatra Method never abandons formal rigour - its sound design is meticulous, its pacing carefully judged - yet it remains porous to the mess of history. It is a record that asks listeners to inhabit discomfort, to hear ghosts in the VHS snow and clipped interviews, and to recognise that the “hot zones” of the past still radiate into the present. Rather than delivering answers, it leaves a charged silence in its wake, a space in which responsibility and complicity can no longer be entirely outsourced to someone else’s story.
