GB — Guitar Builder | Simplicity Board

Explore how a parameter change actually affects the acoustic and pickup sound. GB is the guitar half of the music suite — one page, one parameter model, no modes. You shape a build (TARGET) against a reference instrument (BASE) on the same ~110 parameters, hear the physics-simulated difference, and export real CAD. There is no instrument-type switch: a 34" scale is a bass, bracing and a chamber make it acoustic. The instrument is always derived from the parameters, never selected.

Presets, not modes. Load either side from the recovered original library — Strat '54, Tele '52, LP '59, ES-335, P-Bass '62, Jazz Bass, dreadnought, OM, classical, … A preset only sets parameters, so you can start from a '59 Les Paul and drift it toward a chambered bass one field at a time.
INSPECT / EDIT. Every parameter A·B side by side with diffs, impact bars, and honest provenance badges — physics-simulated vs estimate-only — so you always know which numbers the engine stands behind. Per-subsystem editors carry a bilingual knowledge-base tooltip on every field, and a ⌘P jump palette drops you onto any of them. Pickups are modelled per instrument — a Jazz Bass fits two, a P-Bass one, a Strat three — and the type is physics: a humbucker's wider coil aperture reads darker and hotter than a single-coil, a P-90 sits between, and a piezo or mic turns the build acoustic.
BUILD — the builder as acoustic consequence. Mass, balance and neck-load readouts, a string-tension table, structural-tendency and manufacturing warnings, the derived 2D working drawing, and STEP/STL CAD export — plus the exact engine RUN payload as JSON. Everything recomputes live from the same parameters.
RUN ↵. The delta engine computes the base→target physics delta — brightness, output, sustain, each with its drivers and sensitivity — and you can upload a dry clip to hear the change on real audio. Pickup type feeds the engine's aperture filter, and on a piezo/mic build the soundboard joins the loop: top thickness, top wood and bracing colour the result through a calibrated acoustic-body model — so you can evaluate the acoustic voice, not just the magnetic pickup. Local estimates stay labeled apart from simulation results.

The design object is a derived artifact, never a second source of truth — parameters set anywhere are preserved everywhere by construction. One ConfigMap, one instrument, no translation layer to drift out of sync. Snapshots and the whole A/B persist in the browser, and /?handoff= deep links (from SD's tone match) hydrate the workspace on arrival.

GB는 뮤직 스위트의 기타 제품입니다. 한 페이지, 하나의 파라미터 모델이며 모드가 없습니다. 기준 악기(BASE)에 대해 새 빌드(TARGET)를 같은 약 110개 파라미터 위에서 만들고, 물리 시뮬레이션으로 그 차이를 들은 뒤 실제 CAD로 내보냅니다. 악기 종류를 고르는 스위치는 없습니다. 34인치 스케일이면 그것이 곧 베이스이고, 브레이싱과 챔버가 있으면 어쿠스틱입니다. 악기는 언제나 파라미터에서 파생될 뿐 선택되지 않습니다.

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