“Creator dragged one Note vertically in the Piano Roll.”
The edit remains part of the saved Project lineage, even though it was made by hand instead of by prompt.
Piano Roll follows the A/B audio switch.
ONE PROJECT / EVERY STAGE EDITABLE
Lyra keeps the conversation, musical objects, instruments, mix decisions, and rendered artifact connected instead of collapsing the work into one opaque output.

Three edit modes · one saved Project
Direct manipulation, a scoped Track replacement, and a prompt regeneration all remain inspectable in the same editable lineage.
Hear the edit inside the Project, then isolate the changed Track without losing the shared playhead position.
“Creator dragged one Note vertically in the Piano Roll.”
The edit remains part of the saved Project lineage, even though it was made by hand instead of by prompt.
Piano Roll follows the A/B audio switch.
Each player contains a complete 8-bar Full Mix and the complete changed Track, level-matched for useful A/B listening. The Mix keeps every untargeted Track identical across its pair. Historical per-version bounce bytes were not retained, so these are reconstructed listening previews—not original exported WAVs.
Runtime passed · Artifact hashes verified · Human listening remains a separate judgmentSoundRack · Timbre and Patch
Instead of exposing every engine parameter, SoundRack selects a small set of Patch-specific perceptual controls. All three shape the same shared melody, and the temporary sound updates while you drag.
“give me a dark normal piano sound”
3b62507c44… · one shared MIDI phrase · not an offline exportOne shared melody and its timbre response run locally through SoundRack's AudioWorklet. Dragging updates the temporary Patch in real time; this website does not save or change the canonical Patch.

Verified interface behavior
The same notes keep playing as Body darkness, Hammer presence, or Room distance changes. This website audition stays temporary and leaves the canonical Patch unchanged.
Patchbay · Route, Mix, Render
A saved instrument remains tied to its channel, route, mix, and Project render. Patchbay owns this graph; it does not silently rewrite the instrument Patch.
Actual saved Project mix · 48 kHz · 24-bit
Clear ownership