In this video, I explore the strange toy that is the Magical Musical Thing (Mattel 1979). I speak to Franklin Eventoff, the toy’s inventor, and learn about the other instruments he created as well. I also learn the secret to tuning these darn things.
You can download the sample library of the Magical Musical Thing here.
The raw analog waveforms of a vintage Magical Musical Thing children’s synthesizer.
This library works with the free Decent Sampler player plugin. Download for free right here.

The Magical Musical Thing was produced by Mattel, and invented by Franklin Eventoff, inventor of the Force-Sensing Resistor. Franklin now runs a company called Sensitronics that produces sensors. The oscillator contained within the MMT is based on a 4049 CMOS hex inverter chip.