Acoustic Harmony Quest is a Firefox extension that presents classical music theory concepts, musical note frequencies, and sound acoustics in an interactive popup. Users can inspect note indicators and adjust a frequency dial to match exact pitches.
In the Practice tools & metronomes space, Acoustic Harmony Quest takes a focused approach. It focuses on learning musical pitch, frequency relationships, and acoustics through an interactive browser tool. It is built as a consumer product for music students and enthusiasts. Acoustic Harmony Quest costs nothing to use. It ships for the web and embeddable surfaces.
It is developed by Victoria Hayes, and it first shipped in 2026. Key capabilities include note indicators, frequency dial, and pitch matching. The interface is available in 32 languages, including Czech, German, and Greek.
Summary written by a language model from the project’s public pages.
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