Clicking the Recording / MIDI lane places a dashed mark (nothing else changes); the Pair box
shows both as editable times (m:ss.s or seconds), R / M drop a mark at the playhead, the ▶
buttons audition each track from its mark, Link (Enter) turns them into one manual anchor
(undoable; order conflicts with your anchors are explained and the marks kept), Esc clears.
The ruler sets the playback cursor; anchors are dragged by their handles. Recording and MIDI
volume sliders (0-150 %, Web Audio gain, remembered). Waveform pyramids are built in slices,
previews cached by anchors client-side, fit not re-requested when unchanged, debounce 200 ms.
Help panel updated.
Co-Authored-By: Claude Opus 5.5 <[email protected]>
