(elements ,ly:music-list? "A list of elements for sequential of simultaneous music, or the alternatives of repeated music. ")
(force-accidental ,boolean? "If set, a cautionary accidental should always be printed on this note")
(grob-property ,symbol? "The symbol of the grob property to set. ")
+ (grob-property-path ,list? "A list of symbols, locating a nested grob property, e.g. (beamed-lengths details). ")
(grob-value ,scheme? "The value of the grob property to set")
(input-tag ,scheme? "Arbitrary marker to relate input and output")
(inversion ,boolean? "If set, this chord note is inverted.")