Clubber.js

Converts linear frequency energies to MIDI notes for better segregation of musical elements, as explained in the README, providing more meaningful rhythmic data than traditional FFT methods.

Outputs normalized float arrays directly usable as uniforms in WebGL shaders, enabling real-time visual modulation without additional processing, as highlighted for audio-reactive visualizations.

Allows defining rectangular windows on the MIDI spectrum with adaptive thresholds and smoothing, offering precise control over rhythmic measurements like strongest note index and power-weighted averages.

The Clubber Tool web app facilitates rapid prototyping and music analysis, with export capabilities for patches and Web MIDI output, reducing development time for audio-visual projects.