SpectrumNotes

Overview

Live polyphonic pitch and harmonic analysis. Automatic pitch, harmonic, chord, and key detection.

VisualStudio C# WinForms Windows Desktop Application

License

GPL-3.0-or-later. See LICENSE.
Copyright (C) 2026 Erik Martin.

Disclaimer

This software is provided as-is with no warranty. Pitch detection accuracy varies and should not be relied upon for critical applications.

Installation

Run the Windows installer from the latest GitHub release. (See the "releases" link, possibly on the right.)

Usage

Contributing

Email me, fork the repo and open a Pull Request.