WebM — plays on desktop and Android. Convert to MP4 for iOS.
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Source
What the scan head is reading
Vision
How the frame is reduced before it is read
Sensitivity{{ sensLabel }}
Only bold colour edgesEvery fine detail
Pixelation{{ pixelLabel }}
Edge glow{{ bloomLabel }}
Key & scale
Hue is quantised into these degrees
Reading
Where pitch comes from, and how many at once
Height reads the scan's own vertical position, so a silhouette traces its outline. Extra voices sound the strongest edges in each column at once — busy frames get denser.
Instrument
The voice each edge is played on
Tempo & scan
How fast the head sweeps, and how far
Playing style
Applied to every note the scan finds
Point it at something colourful.
A scan head sweeps the frame. Wherever it finds an edge, the colour underneath becomes a note — hue picks the pitch, saturation the loudness, brightness the octave.