The ANS was a robotic musician that played music by reading hand-drawn images on glass plates.
It could generate 720 distinct microtones simultaneously, far exceeding the polyphony of most commercial synthesizers.
Composers used a non-drying black mastic to draw soundwaves, allowing them to smudge and edit instantly.
The machine was named after Alexander Nikolayevich Scriabin, a composer obsessed with color and sound.
Only one working version of this mysterious, mainframe-sized instrument has ever existed at any given time.
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