"At the Heliosphere's Edge" is a conceptual album by Alex Cargo, recorded as a live modular session in VCV Rack. Built upon an algorithmic patch that dynamically controls the pitch, duration, and timber of the sound. This continuous 29-minute sonic journey is divided into seven seamless tracks: the music flows uninterrupted from one part to another, drawing the listener into a hypnotic state of cosmic flight.

The Riemann hypothesis is a melodic techno track with a soft sound by Alex Cargo. The atmosphere of the track is created by a pumping bass and airy pads. Drums and percussion set the groove and movement of the track. The lead synthesizer changes its timbre throughout the track from gentle to aggressive. This creates a soft hypnotic effect.