Electronic Instruments Concept

Demonstrations in Electronic Instruments

Casio LK-43 electronic keyboard with 61 keys, built-in speakers, digital display, and key lighting system control panel
Safety

Electronic Keyboard

A versatile tool for nearly any topic in sound and music. Use it to discuss pitch, volume, intervals, keys, or instrument voices. Connect the audio output to an oscilloscope and …
Theremin with wooden case on a microphone stand in front of a lecture bench, with a vertical pitch antenna extending upward and a small amplifier on the floor
Safety

Theremin

The theremin demonstrates how capacitance depends on geometry. The performer's hands act as grounded capacitor plates; moving them closer to the antennas changes the capacitance, which shifts oscillator frequencies to …