A musical observatory in the browser. A star’s position sets its timing and pitch; an orbital cursor turns the drawing into a four-bar composition.Amusicalobservatoryinthebrowser.Astar’spositionsetsitstimingandpitch;anorbitalcursorturnsthedrawingintoafour-barcomposition.
SIDEREAL’s circular score and settings for the selected note.
01
Getting started
Add stars to the circular score and choose their voices. Start with a preset or learn the controls in a separate practice sky.Add stars to the circular score and choose their voices. Start with a preset or learn the controls in a separate practice sky.
02
The result
Save the composition in the browser atlas, transfer it through JSON or a link, or download a PNG map or a WAV containing one playback with release tails.Save the composition in the browser atlas, transfer it through JSON or a link, or download a PNG map or a WAV containing one playback with release tails.
03 / Case study
How it works
01
SVG connects the stars, list and exact note parameters. Angle is time; radius is pitch. Keyboard and numeric controls complement dragging.SVG connects the stars, list and exact note parameters. Angle is time; radius is pitch. Keyboard and numeric controls complement dragging.
02
Web Audio synthesizes three voices. Sound starts after a user action, the audio clock drives the cursor and a hidden page pauses playback.Web Audio synthesizes three voices. Sound starts after a user action, the audio clock drives the cursor and a hidden page pauses playback.
03
The guide runs in a separate practice space. Local records and incoming scores are validated; save failures are visible and JSON transfer needs no server.The guide runs in a separate practice space. Local records and incoming scores are validated; save failures are visible and JSON transfer needs no server.
04 / Case study
Project limits
Fixed four bars and three voices. No MIDI, microphone recording or device synchronization. PNG is a constellation score, not staff notation; WAV contains one pass. Listening quality depends on the browser and device.Fixed four bars and three voices. No MIDI, microphone recording or device synchronization. PNG is a constellation score, not staff notation; WAV contains one pass. Listening quality depends on the browser and device.
