Imagine a synthesizer born from the minds behind early AI, designed at MIT in 1972 to improvise endless melodies like a radio from the future—crafted by Edward Fredkin and Marvin Minsky, with Minsky even consulting on 2001: A Space Odyssey.
This tabletop digital wonder uses a single square wave oscillator driven by pure logic circuits—no CPU or memory, just a 31-bit shift register, frequency dividers, and an XNOR gate generating sequences that could loop for years without repeating. Eight 40-position sliders let you shape the music: four (A, B, C, D) pick diatonic intervals from the major scale via a resistor ladder DAC, while the other four (W, X, Y, Z) define the theme; below them, sliders handle volume, tempo, pitch, and fine pitch, with switches for start/stop, single-stepping, rests, and syncing multiple units. A bar-graph lamp display visualizes the logic in action, and it drives an internal speaker or optional external amp.
Only around 280 were made, so working examples are collector's gold; folks cherish its hypnotic, generative patterns as a pioneering step in algorithmic composition, though its fixed timbre and major-scale limit keep it more tool than full synth.
