In 1951, Jacques Poullin and Pierre Schaeffer built the Phonogène at GRM Paris — a rotating magnetic disk with multiple playback heads mounted around it. Tape recording was meant to faithfully reproduce sound (construct), but Schaeffer chiseled away fidelity. Eight heads each read from a different point in time on the spinning disk, stretching, layering, and displacing sound. Music was not "written" — it was the temporal remainder exposed when recording's construct was broken open. The Phonogène was the first instrument grown from remainder.

Seventy-five years later, an independent plugin developer named Tuğrul Akyüz released TugPhonon for free — a software reconstruction of the Phonogène concept. Eight independent playback heads orbit a virtual rotating disk, each with its own delay position, volume, pan, and feedback. So far, tribute. But Akyüz did something Schaeffer and Poullin could never have done: he attached physical modeling resonators to the output of each head. Karplus-Strong strings, bells, pipes, marimbas, beams, membranes — eight resonator types grounded in Bessel functions, Euler-Bernoulli beam theory, and measured bell partial ratios. Each head's temporal remainder no longer sounds directly. Instead, it becomes an excitation signal fed into a physical model. What you hear is the resonator's response to the temporal remainder — the remainder of the remainder.

This is a nested chisel-construct cycle. Layer one: tape recording (construct: faithful reproduction) → chisel away fidelity → temporal remainder (multi-head delay, speed variation, displacement). Layer two: temporal remainder as excitation → fed into physical model (construct: acoustic equations) → resonant remainder (the model's decay, ringing, nonlinear behavior — the part the equations cannot fully predict). Sound passes through two chisel-construct cycles before reaching your ears. This is not a "delay effect." It is a double-remainder harvesting machine. Akyüz himself refuses the "delay" category — he calls TugPhonon a "sound transformation instrument."

Akyüz's entire practice follows the same logic: building impossible instruments. TugSpect uses FFT to scan an image's pixel values and shape audio spectrally — sound as the remainder of an image crossing into the frequency domain. TugImgSynth turns any photograph into a playable wavetable instrument — timbre as the acoustic sediment of pixels. Each plugin is a cross-domain remainder harvest: find an input domain never designed to be heard (disk time, photograph pixels), build a signal path, and let sound emerge as the residue of a cross-domain journey. Every tool is released free on Gumroad, accompanied by a PayPal donate button and a Wix-hosted personal page. No company, no institution, no gallery.

Seeing TugPhonon now matters more than later, because it currently sits in a vacuum where four naming systems fail to claim it. The VST plugin community files it under "free experimental effects" — interesting but not a real product. The musique concrète tradition reads a Phonogène tribute as archaeology — respectful but not new creation. The physical modeling DSP community sees the resonators as engineering — correct but not art. The sound art world does not know plugin developers exist. None of these four naming systems can fully house what Akyüz is doing: one person building impossible instruments for free, each one harvesting the remainder produced when a signal crosses into an alien domain. This logic is still growing, still unnamed. It is living remainder.

Han Qin (秦汉) · @hqinjarsy · SAE Judgment & Aesthetics