Adaptive rhythm // zero uploads
Turn any track into a playable spectrum.
Audio is decoded and analysed on your device. Pick a test track, import your own music, or open a whole folder.
Looking for the original experience? Open the legacy version.
Included with Spectral Pulse
Built-in tracks
Ready-made songs shipped with the website.
From this device
Your imported audio
Only available in this browser session.
No tracks match that signal.
Spectral engine online
Decoding waveform
Preparing the audio buffer locally…
0%
Transmission decoded
Track setup
Shape the chart and atmosphere before entering the spectrum.
Chart
Practice
Atmosphere
Fluid contours and breathing gradients displaced by sound. Intensity changes strength and density without changing the selected theme's visual identity.Spectral Purple Engine analysis
Tempo—
Confidence—
Transients—
Sections—
Tempo hypotheses
Generate a chart to inspect its note balance.