ChordFold is a browser-based chord detection service built around a single task: turning a recording into a readable chord progression. Rather than positioning itself as a full music production suite, it keeps the interface focused on uploading audio, running detection, and reviewing the result. The site also offers a video audio remover and a FAQ section, but the chord finder is clearly the centerpiece.
The workflow is deliberately short. You drop in an MP3, WAV, or other browser-supported audio file, wait for the model to download the first time, and then detection runs locally on your device. Results appear as a chord timeline with timestamps, so you can jump to a specific change instead of scrubbing blindly. Each chord can be checked against guitar shapes or piano notes, which helps when you want to actually play the progression rather than just name it.
A sample track called Afterglow is included as a precomputed demo, letting you explore the player and instrument references before uploading anything. This is useful for understanding how the timeline behaves and what the chord labels look like. The upload limits of 14 MB and 10 minutes per file are worth noting, since longer recordings will need to be trimmed first.
ChordFold suits guitarists and pianists working out songs by ear, students practicing progression recognition, and casual players who want a quick reference for a riff or demo. It is less suited to full-song transcription or complex jazz harmony, where est
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