Audio track velocity editing in the sequencer.

screenshots/ALL.md

@@ -37,6 +37,22 @@ Keys and Bass expand downward to reveal MIDI velocity bars while following track
 
 ---
 
+## Shape audio velocity at any point
+
+![Continuous audio velocity envelope beneath an expanded track](audio-velocity-expanded.png)
+
+The audio track exposes a continuous level envelope with editable gain points at arbitrary timeline positions. The Keys track below retains its MIDI note velocity bars.
+
+---
+
+## Preview an audio level adjustment
+
+![Dragging an audio velocity envelope point](audio-velocity-editing.png)
+
+Dragging a point vertically previews the new envelope and displays its level in the track header. Release to commit the edit or press Escape to cancel.
+
+---
+
 ## Start a new track
 
 ![Start a new track](create-track-menu.png)

screenshots/README.md

@@ -32,6 +32,27 @@ APIs and GUI history/preparation paths. Original projects, media and user
 configuration are not overwritten. Black margins are the virtual desktop;
 floating views show the actual detached windows together.
 
+## Continuous audio velocity editing (Phase 110)
+
+![Audio velocity envelope beneath a waveform track](audio-velocity-expanded.png)
+
+The expanded audio track shows a continuous gain envelope alongside the
+Keys MIDI velocity lane. Points were created through actual sequencer gestures;
+the screenshot is an unmodified application capture. Click anywhere in an audio
+lane to add a point, drag vertically to adjust it, or right-click a cap to remove
+it. The level range is 0–400%; points share the mixer's saved gain automation.
+
+The [editing preview](audio-velocity-editing.png) shows an active vertical drag
+with its level displayed in the track header.
+
+Reproduce these two captures without replacing the other images:
+
+```sh
+cmake --build build --target capture_screenshots
+XTC_CAPTURE_AUDIO_VELOCITY_ONLY=1 xvfb-run -a -s '-screen 0 1440x960x24' \
+  ./build/capture_screenshots "$PWD/screenshots"
+```
+
 ## Expandable track velocity lanes (Phase 109)
 
 ![Tracks expanded downward with editable MIDI velocity bars](track-velocity-expanded.png)