A design & engineering brief · 02
Sleepless.fm
the dj who never sleeps
I wanted a DJ set that never ends: every song analysed and blended into the next, all night. No uploads, no accounts, nothing sent to a server: the whole thing runs in the browser. And I wanted it to keep surprising me with songs I wouldn't have picked myself.
The deck, live
Click through and press play. It never stops.
open the real thing ↗
Design notes
- The UI takes its colors and mood from whatever's playing.
- No library to manage and no signup. You press play and it's going.
- Friends can join the same room with a code and suggest songs into the mix.
Engineering notes
- All the analysis and mixing happens in the browser. Nothing is uploaded.
- The next track is scored live against what's playing (tempo, key, energy) and blended in.
- Stable enough to run a party all night unattended.