Released on March 21, 1975, Rubycon is considered a masterpiece of the of electronic music. It features a classic lineup consisting of Edgar Froese, Christopher Franke, and Peter Baumann.

: The album consists of a single continuous piece divided into two parts, originally filling each side of the LP.

Rather than using potentially unreliable third-party .rar files, there are several official and secure ways to listen to or download Rubycon :