Pitch and Frequency
by Anonymous
Press keys and shorten strings to discover that doubling the frequency raises a note by exactly one octave.
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About this app
Pitch and Frequency is an interactive music education app that explains how vibration frequency affects whether a sound is high or low. Explore note names and frequencies on a keyboard, compare sounds to discover why doubling the frequency creates a one-octave interval, and change string length to see how it affects vibration speed. Designed for elementary learners, it combines guided challenges, visual waves, and optional sound.
Use cases
- Elementary students learning the basics of sound and pitch
- Music teachers demonstrating frequency and octaves
- Parents exploring music science with children
- Learners practicing note, frequency, and string-length relationships
Features
- Interactive keyboard with note names and frequencies in Hz
- Guided challenges for identifying low, high, and 440 Hz notes
- Two-sound comparison showing frequency ratios such as double and quadruple
- String-length activity demonstrating that halving length doubles vibration frequency
- Visual vibration and waveform illustrations
- Optional sound playback, reset controls, and step-by-step progression