O037 · app
Sound Canvas
A local-first browser sketchpad for arranging abstract sound notes spatially and hearing simple synthesized tones, with JSON export and no uploaded audio.
Make a spatial score
Purpose
Make a tiny spatial score: add abstract notes, drag them around a field and click each one to hear a short synthesized tone. The arrangement is a sketch, not a recording studio or cloud music service.
Workflow
Open the canvas, add notes, drag them into a spatial pattern, click notes to audition tones, and export the arrangement as JSON if you want a portable text record. The app stores its current arrangement in this browser only.
Features
Deterministic five-tone palette; pointer dragging; synthesized Web Audio tones; browser-local save; JSON export; clear/reset. No uploaded audio, microphone access, user account, remote file store or social feed is used.
Limitations
Audio depends on browser Web Audio support and may require a user gesture before sound starts. Exported JSON describes note positions and frequencies; it is not an audio file. Local storage can be cleared by the browser or device.
How To Use
Press Add note, drag circles around the field, then click circles to hear their tones. Use Export JSON before clearing the canvas if you want to keep the arrangement.