Spiral is an innovative music analysis plugin that offers a unique approach to spectral visualization. By coiling the audio spectrum into a spiral framed by a chromatic circle, it provides an immediate and intuitive way to understand the musical content and notes within a track. This design enables users to quickly grasp both the spectral and musical elements, making it easier to analyze complex soundscapes and harmonic structures.

The plugin uses color coding to represent the stereo position of sounds, allowing individual instruments to often be identified by their distinct hues. Spiral includes a memory feature that lets users record portions of audio and play them back at slower speeds, which is particularly useful for transcribing notes or examining chords in detail. Analysis resolution is adjustable to accommodate different musical contexts, providing more precise timing for fast passages or deeper insight into complex chords and bass lines. The spiral visualization itself can be rotated to align the root of a scale at the top, simplifying note recognition, while interactive overlays help highlight harmonics to assist in chord identification.

Spiral is compatible with both Windows and Mac systems, supporting VST and AU plugin formats in 32 and 64-bit versions. Its user-friendly interface and innovative visual approach make it an effective tool for musicians, producers, and audio engineers seeking to deepen their understanding of musical content through spectral analysis.