Sound Gallery - Harmonica

Red and gold harmonica
This harmonica is part of a collection of artifacts at Fort Larned National Historic Site, KS

Photo by Louann Barker

Spectrogram of a harmonica
Spectrogram of a harmonica. Spectrograms are graphs that visualize sounds. The brightness of the colors shows sounds’ amplitude (loudness) across different frequencies (pitches), shown from bottom to top, and over time, from left to right.  This spectrogram visualizes the changing frequencies and harmonics as the musician changes notes.

NPS

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Last updated: May 7, 2025