+ systemStartDelimiterGlyph = #'bar-line
+
+ %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ % default settings, mainly for breakable items
+ %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ basicBarNumberProperties = #`(
+ (breakable . #t)
+ (visibility-lambda . ,begin-of-line-visible)
+ )
+ basicMarkProperties = #'(
+ (breakable . #t)
+ (visibility-lambda . end-of-line-invisible)
+ )
+ leftEdgeBasicProperties = #'(
+ (break-align-symbol . Left_edge_item)
+ (breakable . #t)
+ )
+
+ staffSymbolBasicProperties = #'(
+ (staff-space . 1.0 )
+ (line-count . 5 )
+ )
+ basicTimeSignatureProperties = #`(
+ (break-align-symbol . Time_signature)
+ (visibility-lambda . ,all-visible)
+ (breakable . #t)
+ )
+ basicBarlineProperties = #`(
+ (break-align-symbol . Staff_bar)
+ (visibility-lambda . ,begin-of-line-invisible)
+ (breakable . #t)
+ )
+ basicSystemStartDelimiterProperties = #'(
+ (collapse-height . 1.0)
+ )
+ basicKeyProperties = #`(
+ (break-align-symbol . Key_item)
+ (visibility-lambda . ,begin-of-line-visible)
+ (breakable . #t)
+ )
+ basicClefItemProperties = #`(
+ (breakable . #t)
+ (break-align-symbol . Clef_item)
+ (visibility-lambda . ,begin-of-line-visible)
+ )
+
+ basicBeamProperties = #`(
+ (beam-thickness . 0.42) ; interline!
+ )
+ basicStemTremoloProperties = #'(
+ (beam-width . 4.0) ; interline!
+ (beam-thickness . 0.42) ; interline!
+ )
+
+ basicBreathingSignProperties = #'(
+ (break-align-symbol . Breathing_sign)
+ (breakable . #t )
+ (visibility-lambda . ,begin-of-line-invisible)
+ )
+ basicOctavateEightProperties = #'(
+ (self-alignment-X . 0)
+ (text . "8")
+ (style . "italic")
+ )
+ basicDynamicLineSpannerProperties = #`(
+ (transparent . #t)
+ )
+ basicDynamicTextProperties = # `(
+ (style . "dynamic")
+ (script-priority . 100)
+ (self-alignment-Y . 0)
+ )
+ basicLyricTextProperties = #`(
+ (non-rhythmic . #t)
+ )
+ basicRestCollisionProperties = #`(
+ (transparent . #t)
+ )
+ basicCollisionProperties = #`(
+ (transparent . #t)
+ (axes 0 1)
+ )
+ basicSingleMaltGroupingItemProperties = #'(
+ (transparent . #t)
+ )
+ basicBreakAlignProperties = #'(
+ (breakable . #t)
+ )
+ basicInstrumentNameProperties = #`(
+ (breakable . #t)
+ (break-align-symbol . Instrument_name)
+ (visibility-lambda . ,begin-of-line-visible)
+ )
+ basicLocalKeyProperties = #`(
+ (left-padding . 0.2)
+ (right-padding . 0.4)
+ )
+