+
+;;;;;;;;;;;;;;;;;;;;
+;;;;;;;;;;;;;;;; INTERNAL
+
+(grob-property-description 'left-neighbors list? " List of
+spacing-wish grobs that are close to the current column.
+
+The closest spacing-wishes determine the actual distances between the
+columns.
+")
+(grob-property-description 'right-neighbors list? "see left-neighbors")
+(grob-property-description 'left-items list? "")
+(grob-property-description 'right-items list? "")
+
+(grob-property-description 'cause scheme? "Any kind of causation objects (i.e. music, or perhaps translator) that was the cause for this grob. ")
+(grob-property-description 'font font-metric? "Cached font metric object")
+(grob-property-description 'break-alignment-done boolean? "mark flag to signal we've done alignment already.")
+(grob-property-description 'staff-symbol ly-grob? "the staff symbol grob that we're in.")
+(grob-property-description 'collision-done boolean? "")
+(grob-property-description 'rest ly-grob? "the staff symbol grob that we're in.")
+(grob-property-description 'rest-collision ly-grob? "rest collision that a rest is in.")
+
+(grob-property-description 'staff-support boolean? " JUNKME.")
+(grob-property-description 'script-molecule pair? "index code for script.")
+
+(grob-property-description 'accidental-grob ly-grob? "Accidental for this note.")
+
+(grob-property-description 'causes list? "list of cause objects.")
+(grob-property-description 'flag-count number? "")
+(grob-property-description 'chord-tremolo boolean? "if set, this beam is a tremolo. TODO: use interface for this!")
+(grob-property-description 'chord pair? "?")
+(grob-property-description 'begin-of-line-visible boolean? "?")
+
+(grob-property-description 'quant-score number? "Beam quanting score
+-- can be stored for debugging")
+(grob-property-description 'least-squares-dy number?
+ "ideal beam slope, without damping.")
+(grob-property-description 'stem-info pair? "caching of stem parameters")
+(grob-property-description 'note-columns pair? "list of NoteColumn grobs.")
+
+(grob-property-description 'if-text-padding number? "padding in case texts are there.")
+(grob-property-description 'grace-space-factor number? "space grace at this fraction of the increment.")
+(grob-property-description 'position-callbacks list? "list of
+functions set spanner positions.")
+(grob-property-description 'chord-name-function procedure? "DOCME")
+(grob-property-description 'minimum-beam-collision-distance number?
+"Minimum distance to beam for a rest collision.")
+
+(grob-property-description 'avoid-note-head boolean? "if set, the stem of a chord does not pass through all note head, but start at the last note head. Used by tablature.")
+(grob-property-description 'up-to-staff boolean? "if set, stems' lengths are set so as stems end out of the staff. Used by tablature.")