- \once \override FretBoard #'fret-diagram-details
- #'barre-type = #'none
- \once \override FretBoard #'fret-diagram-details
- #'number-type = #'arabic
- \once \override FretBoard #'fret-diagram-details
- #'orientation = #'landscape
- \once \override FretBoard #'fret-diagram-details
- #'mute-string = #"M"
- \once \override FretBoard #'fret-diagram-details
- #'label-dir = #-1
- \once \override FretBoard #'fret-diagram-details
- #'dot-color = #'black
+ \once \override FretBoard
+ #'(fret-diagram-details barre-type) = #'none
+ \once \override FretBoard
+ #'(fret-diagram-details number-type) = #'arabic
+ \once \override FretBoard
+ #'(fret-diagram-details orientation) = #'landscape
+ \once \override FretBoard
+ #'(fret-diagram-details mute-string) = #"M"
+ \once \override FretBoard
+ #'(fret-diagram-details label-dir) = #LEFT
+ \once \override FretBoard
+ #'(fret-diagram-details dot-color) = #'black