Emmanuel Retzepter

Creative developer. retzepter.com is a single-page interactive artifact rather than a portfolio: one full-screen sphere that shifts colour and tempo with your local time of day, season and moon phase, with a heartbeat you can hear.

Press and hold anywhere to begin. The world falls away into a field of other worlds, and the artifact plays a scored journey of just under three minutes, set to Listen, a 2024 track by Emmanuel Retzepter synthesised live in the browser. Space or Enter held works too. Two quick taps mute the sound; a held press ends the journey early.

Everything the page knows about you — how often you have visited, the mood you left in, a tempo you tap in — is computed in your browser and stored there, and is never transmitted. The site sets no cookies. Visits are counted in aggregate by Cloudflare's cookieless analytics, which stores nothing on your device, records no identifier, and follows no one between sites.

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