The rest of the lyrics tools came with it. The sheet carries the per-track
auto-sync switch (`lyrics_set_auto_sync`), so the timing correction the app
makes from a file's own lead-in can be turned off for one recording and back
on. "Re-time by hand" opens the tap-to-sync room (`SyncRoom.svelte`, one
more layer the back gesture peels): the song plays, the line to time sits
large in the middle of the screen with the one behind and the one ahead
faint around it, and a tap anywhere stamps it — the last tap undone, −5 s
and play/pause under the thumb, and Save writing the track's own document
(`lyrics_save_lines`, the top of the waterfall, where a paste lands too).
Lines never tapped are left out of it and the button says how many are kept;
a set left mid-tap by the back gesture is offered back by the row that
opened it. "Play with reduced vocals" is the desktop's offline DSP
(`lyrics_prepare_instrumental` — a band-limited centre cancel, not a
separator, and the wording stays honest about that): the copy plays under
the same title, artist and duration, so the lyric identity is still the
recording's and the words keep following it, and one row puts the original
back.
