DataSymphony
data you can hear - 3 movements sonifying real PD/CC0 datasets, played by pure C# offline codecs. Data from OnlyCSharp.Data/1.8, score & synth by Arts.Music, frames on the Game framebuffer, GIF + WAV encoded by the library's own codecs. No GPU, no ffmpeg, no packages.
I. TRINITY
Catalogs.History.NuclearDetonations - 20 detonations, 1945-2017

yield -> pitch depth + blast ring - year -> the clock - longitude -> stereo pan
II. THE SPACE RACE
Catalogs.PhysicsAndAstronomy.SpaceMissions - 61 missions, 1957-2023

destination -> scale degree - agency -> waveform - mission kind -> note length
III. RESTLESS EARTH
Catalogs.EarthScience: LargestEarthquakes (16) + NotableHurricanes (21), 1900-2022

magnitude -> bass strike - storm category -> wind sweep + chord - the quakes trace the Ring of Fire
Every artifact on this page was produced by the frozen OnlyCSharp 1.8 oracle: catalog rows → Arts.Music scales/ADSR → stereo PCM → WavWriter; Framebuffer/ArcadeDraw/TextRender frames → the library GIF encoder. Spectrum overlay = AudioFeatures.Stft of the actual mix. The page plays the animated GIF with the lossless WAV; a WebM (library VP8 + Vorbis, muxed by MkvWriter) round-trips through the library's own MkvReader/decoders; external-decoder conformance for those two encoders is a known 1.9 gap, so this page plays the GIF with the lossless WAV. All source data is public-domain/CC0, cited in the catalogs themselves (SOURCING.md).