-(translator-property-description 'centralCPosition number? "Place of the central C. Usually determined by looking at clefPosition and clefGlyph.")
-(translator-property-description 'changeMoment moment-pair? "duration that voices are examined for differences, when part-combining. Usually unset or zero when combining threads into one voice, and 1 (or the duration of one measure) when combining voices into one staff.")
+(translator-property-description 'busyGrobs list? "
+a queue of (END-MOMENT . GROB) conses. This is for internal (C++) use only.
+Use at your own risk. This property contains the grobs for which END-MOMENT >= NOW.
+")
+
+(translator-property-description 'centralCPosition number? "Place of
+the central C, measured in half staffspaces. Usually determined by
+looking at clefPosition and clefGlyph.")
+
+(translator-property-description
+ 'changeMoment moment-pair?
+ "duration that voices are examined for differences, when
+part-combining. Usually unset or zero when combining threads into one
+voice, and 1 (or the duration of one measure) when combining voices
+into one staff.")
+
+(translator-property-description
+ 'chordNameFunction procedure?
+ "The function that converts lists of pitches to chord names.")
+(translator-property-description
+ 'chordNoteNamer procedure?
+ "Function that converts from a pitch object to a text markup. Used for single pitches.")
+(translator-property-description
+ 'chordRootNamer procedure?
+ "Function that converts from a pitch object to a text markup. Used for chords.")
+(translator-property-description
+ 'chordNameExceptions list?
+ "Alist of chord exceptions. Contains (CHORD . MARKUP) entries.")
+(translator-property-description
+ 'chordNameSeparator markup?
+ "The markup object used to separate parts of a chord name.")
+
+