Audio Prompt Guide: per-segment / per-time / global notes

The notes box now routes each line to a target: 'seg2: fast' (by number, also '2:'
/ 'S2:'), '10s-15s: drop' (by time range / '12.3s:'), or unprefixed = global. Segment
notes are attached to the matching segment in the summary (marked NOTE, overrides the
energy default) and drawn on the waveform image; time notes attach to overlapping
segments (strict end boundary); globals listed separately. README documents the syntax.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>

README.md

@@ -86,6 +86,15 @@ The model then gets the audio's timing/energy + your motion notes and writes bea
 camera moves, and deltas that escalate with the music. `librosa` is optional (BPM/beats);
 without it you still get the energy envelope + segments.
 
+**Notes can target a segment** (the note overrides that segment's energy default, and is drawn
+on the waveform). Syntax in the `notes` box, one per line:
+
+```
+seg1: slow dreamy intro          # by segment number (also "1:" or "S1:")
+10s-15s: explosive drop          # by time range (also "12.3s:")
+cinematic, moody grade           # no prefix = global (applies throughout)
+```
+
 ## Performance / speed
 
 This node runs models through **transformers `.generate()`** — the simplest path, but the