+ (AccidentalPlacement
+ . (
+ (X-extent-callback . ,Axis_group_interface::group_extent_callback)
+ (left-padding . 0.3)
+ (right-padding . 0.3)
+ (meta . ((interfaces . (item-interface accidental-placement-interface))))
+ ))
+
+ (Ambitus
+ . (
+ (breakable . #t)
+ (break-align-symbol . ambitus)
+ (molecule-callback . ,Ambitus::brew_molecule)
+ (font-family . music)
+ (note-head-style . "noteheads-2")
+ (visibility-lambda . ,begin-of-line-visible)
+ (join-heads . #t)
+ (space-alist . (
+ (clef . (extra-space . 0.0))
+ (key-signature . (extra-space . 0.0))
+ (staff-bar . (extra-space . 0.0))
+ (time-signature . (extra-space . 0.0))
+ (first-note . (extra-space . 0.0))
+ ))
+ (meta . ((interfaces . (ambitus-interface staff-symbol-referencer-interface break-aligned-interface item-interface font-interface))))
+ ))