This single-file application is engineered as a robust, pedagogical tool for brass musicians. It utilizes the Web Audio API for synthesis, SVG for high-fidelity visualization, and a clean, responsive layout. ```html Free Brass Instrument Harmonic Series & Valve Chart Visualizer

Brass Instrument Harmonic Series Visualizer

Interactive harmonic series physics and valve combination trainer.

Valve Combination

How it works

This tool calculates the harmonic series based on the total tubing length adjusted by valves or slide positions.

The "cents deviation" displays how natural harmonics compare to modern Equal Temperament.

Harmonic Series (Partials 1–12)

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