enable sync: advanced: full screen: file buttons: line cursor: speed ctrl: loop mode: annotate: hide player: hide dashes: count in: crop: max width: line threshold: cluster threshold: skip: select: first quarter: prefer systems: single staves: black threshold: before / after threshold: barline threshold: dx: page: no menu: import: pdf data: help

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The menu is explained in the usage instructions
You can use the following keys:

spacebar or tap in left margin	pause / continue	f	toggle file buttons
right arrow	go to next measure	l	toggle line cursor
left arrow	go to previous measure	h	toggle help
+/-	increase / decrease speed	m	toggle menu

In addition, when synchronization is enabled:

b or tap in score	record sync point, move to the next measure.	g	remove a pair of repeat marks.
backspace or clear button	backup one measure: erase current sync point (and all following, if any)	long click or shift click in measure	add a repeat mark to the measure
,	shorten the duration of the current measure	ctrl-,	shorten the initial offset (play back time in the media file where the first measure starts).
.	lengthen the duration of the current measure.	ctrl-.	lengthen the initial offset.
w or save button	save timings, pdf data and other settings to a file (see preload file). Also works with dropbox. You can load a preload file with the score file button.

synchronizing:

• At the start of every new (unsynchronized) measure the program waits for a click/tap in the score (or key press 'B')
• By clicking in the score (or typing key 'B') you synchronize the *first* beat of that measure to the audio.
• The duration of the current measure and the initial offset are shown in the top right corner of the display. You can precisely adjust these numbers with the keyboard sync commands (preferably when media is paused).

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