SigilLLC 

A fluent API for sound synthesis in your .NET app: instruments, effects, recording to a file and live playback, on a block-based DSP engine.

Notes, scales, chords, patterns, mini-notation and polyphonic playback for Sigil.Sound.

Compiles Sigil.Sound C# snippets with Roslyn behind a security validator and answers editor questions (completion, signatures, diagnostics). For hosts that run user scripts. Pre-1.0: the API may change.

Signal analysis and audio assertions for testing Sigil.Sound code.