spiral

Spiral by Photosounder is a music analysis plugin that turns audio into a readable map of pitches and frequencies. Its spectrum wraps around a spiral inside a chromatic circle, helping you connect what you hear with the notes on screen. Colours indicate stereo position, making sounds in different parts of the mix easier to distinguish. For transcription and chord study, you can capture passages in memory and replay them at speeds from 0% to 100%. Adjustable analysis resolution lets you prioritise timing detail for fast passages or frequency detail for bass, dense chords and instrument tuning. Rotate the display to place your scale’s root at the top, then add harmonic overlays to help identify individual chord tones. Rather than shaping your sound, Spiral helps you understand it—a useful companion for producers, musicians and anyone learning tracks by ear.