Find the bar
Play, and watch for where the cursor leaves the music. Click that bar in the tab.
Put it where it sounds
Click the bar's downbeat on the waveform, or tap Space on it while playing. That makes it an anchor.
Let the rest follow
Advanced → Sync from my anchors warps every bar between your anchors. Or shift-click two bars and Re-align just that stretch.
Made it worse?
Undo steps back one change at a time, Auto-sync included.
- ← → nudge the selected bar 10ms · with Shift 1ms · Alt 100ms
- Delete remove its sync point
- Ctrl+Z undo
- Drag a marker and it snaps to the nearest beat · hold Alt to place it exactly
- Scroll to zoom the waveform, drag empty space to pan · on a touchscreen, pinch and two-finger drag
- Bold, numbered markers are your anchors; faint ticks are Auto-sync's, red to green by how sure it was
Waveform
Load a song with audio to see the waveform