(connectArpeggios ,boolean? " If set, connect arpeggios across
piano staff.")
(createKeyOnClefChange ,boolean? "Print a key signature whenever the clef is changed.")
+ (createSpacing ,boolean? "Create StaffSpacing objects? Should be set for staves.")
(crescendoText ,markup? "Text to print at start of non-hairpin crescendo, i.e.: @samp{cresc.}")
(crescendoSpanner ,symbol? "Type of spanner to be used for crescendi.
One of: @samp{hairpin}, @samp{line}, @samp{dashed-line},