Violin/Cello Bow Lucchi Elasticity Index, Balance-Point & Horsehair Hank Strand Sizer

Deterministic Tapered curved-beam flexural rigidity EI -> longitudinal acoustic wave velocity sqrt(E/rho) + hygroscopic horsehair pre-tension allowance engine (.pdf, .json, .csv) built for CodaBow, Arcus, Dictum, Riedl Bowhair — zero-upload ephemeral Wasm RAM execution.

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