A Consumer Keyboard… That Sparked a Revolution
In 1981, Casio released a humble home keyboard—cheap, plastic, and portable. It had just 37 main keys and 15 smaller bass keys, a few rhythm presets, and a built-in speaker.
It wasn’t a synthesizer in the traditional sense.
Instead of generating tones from scratch, the MT‑40 played back pre-recorded sounds stored on “voice chips.” Think of it like a musical sketchpad made for beginners.
But one hidden preset, simply called “Rock,” would go on to shake the very foundation of reggae—and spark a digital revolution.
