Khyam Allami is an Iraqi-British musician and researcher at the Music Intelligence Lab, American University of Beirut. On July 21, 2026, he launched two interlocking tools in Beirut: the Digital Arabic Maqām Archive (DiArMaqAr) and the Tānghīm MIDI plug-in. DiArMaqAr is a multilingual, open-source web platform and REST API documenting the full body of Arabic maqām theory — from al-Kindī's 9th-century string ratios through the 1932 Cairo Congress tuning decisions, covering hundreds of tuning systems (tanāghīm), intervals (ajnās), melodic modes (maqāmāt), and modulation pathways, each with complete bibliographic attribution. Tānghīm (free, open-source, VST3/AU/CLAP for macOS, Windows, and Linux) queries DiArMaqAr's API and brings this data into any DAW. Three tuning methods — MTS-ESP for simultaneous automatic retuning of compatible plug-ins, MPE for polyphonic pitch-bend instruments, and Mono Pitch Bend for any MIDI hardware back to 1983 — ensure nothing is out of reach. The interface is twelve draggable per-chromatic-step sliders with snap markers, so a player can adjust a maqām tuning by ear, in real time, while playing.

To understand why this is 余项之美, you need to see the already-construct clearly. The 1983 MIDI specification encoded pitch as integers 0–127, equally spaced, 100 cents per semitone — a mathematical decision that installed Western Equal Temperament (12-TET) as the universal default for all digital music. Every DAW, synthesizer, and MIDI controller has operated on this floor for forty years: pitch is an integer, an octave is twelve equal steps. Arabic maqām theory — with over a thousand years of documentation, its own two-dīwān note-naming system spanning rāst through dūgāh to sīkāh, and precise interval ratios compiled by al-Fārābī, Ibn Sīna, and Mikhā'īl Meshshāqa — was never absent from performance practice; Arabic musicians never stopped playing maqāmāt. But it was constitutionally absent from digital infrastructure. When digital Arabic keyboards arrived in the 1980s, musicians developed a workaround called tasyīk or tashrīq: lower one note by 50 cents, approximate a "quarter tone." This shortcut became its own construct — the default form of digital Arabic music, trading full maqām intonation for a single fixed deviation from 12-TET. The chisel here operates on two levels: DiArMaqAr formalizes a thousand years of tuning scholarship into a queryable API; Tānghīm inserts that data into any DAW through three tuning methods that bypass the 12-TET floor without asking the host software to change.

The remainder excavated is double. The first is the full intonational body of Arabic maqām — not the 50-cent tasyīk approximation, but the precisely documented interval structures of al-Kindī, al-Fārābī, Mikhā'īl Meshshāqa, the Cairo Congress — always alive in practice, always absent from digital infrastructure. Tānghīm makes this visible and usable inside a DAW for the first time. The second remainder is subtler: maqām is not a fixed set of pitches but a live practice of intonation, where the player continually adjusts pitch in response to modulation, context, and musical feeling. This is what the name Tānghīm names — tānghīm (التنغيم) is the Arabic maṣdar for the act of intoning, the living quality of pitch-setting, as distinct from dūzān (دوزان), the mechanical tuning of strings before you play. Every static tuning tool before it — every Scala file, every MTS-ESP preset — has done only dūzān: set the pitches and lock them. Tānghīm's twelve draggable sliders point at what remains beyond that: the intonation that happens in the playing itself.

From the SAE chisel-construct cycle, the timing matters. AI music generation tools — Suno, Udio, and others — are almost entirely trained on 12-TET Western corpora. As this equation consolidates (what AI generates = what fits 12-TET), Arabic maqām stops being an undigested remainder and becomes a labeled exception — something to request in a future model update, something to accommodate later. Before that accommodation closes the naming gap, Tānghīm arrives as the first tool to bring the full structural body of maqām theory into the digital audio production layer — not as a sample pack, not as a microtonality experiment, but as a live archive with an API and a real-time intonation interface. The naming gap is still wide: "microtonal" treats 12-TET as the baseline; "world music plugin" is the colonialist frame; "tuning software" misses the liveness. Kirn writes: "The computer can do better; we can do better." That is not a category name. It is an acknowledgment of a remainder that has been there, below the equal-temperament floor, for over a thousand years — and that digital music has, until now, never truly tuned.

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