River Dillon has done something precise: he wrote a programming language in which programs evolve on a two-dimensional grid like cellular automata, and the byproduct of that evolution is music. The core mechanism of CLAVIER-36 (C36) is not complicated—letters are operators, digits are literals, the grid evaluates row by row in English reading order, all operators update synchronously each cycle. It ships with a built-in sampler and sine wave synthesizer, and supports MIDI output. Place a clock operator, wire it to a comparator, connect a sampler, and you have a beat. But this is surface. The real question begins when you feed random numbers into a quantizer, route the quantizer's output into a pitch parameter, and launch an INTERFERE operator that fires symbols into the program's own memory space—symbols that move autonomously through the grid until they collide with something and are destroyed. Stack these mechanisms together and what you are writing is no longer music. It is an organism that composes for itself.

The remainder structure of C36 is nested. The first layer: it descends from Orca, the legendary grid-based music language created by Devine Lu Linvega of Hundred Rabbits. Orca was itself a chisel operation on traditional composition—letter-operators replaced notes, local rules replaced global arrangement, and music became the remainder of code execution. But over a decade Orca gradually became construct: it acquired community consensus, an aesthetic paradigm, a tutorial ecosystem. River Dillon reimplemented Orca from scratch, then let it diverge. C36 chisels away what Orca could not resolve on its own: Orca depends on external tools for sound (SuperCollider, Ableton) and suffers from timing imprecision (Devine himself has discussed this on a podcast). C36 swallows the entire signal processing pipeline, achieving sample-accurate timing. The cost is that the program is now a self-sufficient organism that no longer needs a host. That "cost" is the remainder.

The second layer of remainder comes from the base-36 numeral system. 36 = 26 letters + 10 digits, exactly the total number of single-character alphanumeric keys on an English keyboard. And 36 ÷ 12 = 3—precisely three octaves of range. River Dillon calls this "a happy coincidence." But SAE aesthetics sees not coincidence but an unplanned bridge between keyboard hardware (construct) and musical structure (construct). No one designed the keyboard with three octaves in mind; no one designed twelve-tone equal temperament thinking about ASCII. This alignment is the remainder exposed when two independent construct-systems collide, and C36 is the first practice to turn that remainder into an instrument. Thirty-six scales—from Major to Diminished, from Ryukyu pentatonic to Bartók Gamma—fill every position in the base-36 address space. The scales themselves become addresses.

The third layer is the naming gap. C36 is listed on Steam under "Audio Production" and "Early Access"—but it is not a DAW, not a sequencer, not a game, not a cellular automaton simulator, and not a general-purpose programming language. Steam's category system cannot name it. TOPLAP's live-coding community recognizes grid-based programming (Orca is theirs), but C36's self-contained synthesis and metaprogramming capabilities—programs that modify themselves as they run—push it into territory Orca never reached. The Handmade Network lists it—a community that advocates for handmade software—but C36's concern is not performance optimization or low-level control; it is the autonomous emergence of music. It sits on open ground between live coding, cellular automata, game platforms, digital audio workstations, and metaprogramming. No single category can fully claim it.

Seeing C36 now matters more than seeing it later. It is still in Early Access—27 of 36 operators are complete, and the semantics will change significantly. River Dillon explicitly warns on the Steam page that patches created before version 1 will likely not load in future versions. This is not a defect; it is evidence that a language is still growing. Its logic has not yet hardened into construct. When the community discovers programming techniques, when operator design is rewritten by user practice, when MIDI output and external clock sync are finalized—C36 will become something else. But by then its remainder identity will have begun to sediment. Right now, it is still alive.

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