How the EMS VCS 3 Pushed Pink Floyd from Tape Splicing to Precision Electronics

The EMS VCS 3 wasn’t Pink Floyd’s first synth—they’d borrowed a Synthi A for More and Ummagumma—but on Dark Side of the Moon it changed their workflow completely. Before the VCS 3, the band’s experimental side came from hours of cutting tape loops, slowing down pianos, and manipulating found sounds. The synth let them dial up those textures on the fly: “On the Run” is basically one long VCS 3 sequence run through a Binson echo unit, no tape splicing required.

That shift from physical collage to voltage-controlled precision opened up new possibilities for rhythmic repetition. The VCS 3 could hold a steady pattern in a way that handmade tape loops never could, giving tracks like “Any Colour You Like” a locked-in, mechanical pulse. Earlier experiments with the Synthi A were more chaotic—used for sound effects on Atom Heart Mother—but the VCS 3’s built-in keyboard (the “Touch Sensitive Keyboard”) let them play it like an instrument, not just a noise box. It became a member of the band, not a novelty.