The programmer was a commercial product, rather than a custom design made specifically for Eno. It was manufactured by a German company named Jellinghaus: http

The programmer was a commercial product, rather than a custom design made specifically for Eno. It was manufactured by a German company named Jellinghaus: https://reverb.com/item/21724471-jellinghaus-dx-programmer-for-yamaha-dx-7-1984-blue https://reverb.com/item/21724471-jellinghaus-dx-programmer-f...