lines. It is the sum of 2@tie{}numbers: The first is the factor for
line thickness, and the second for staff space. Both contributions
are added.")
- (ledger-positions ,list? "Repeating pattern for the vertical positions
-of ledger lines. Bracketed groups are always shown together.")
+ (ledger-positions ,list? "Vertical positions of ledger lines.
+When set on a @code{StaffSymbol} grob it defines a repeating
+pattern of ledger lines and any parenthesized groups will always be
+shown together.")
(left-bound-info ,list? "An alist of properties for determining
attachments of spanners to edges.")
(left-padding ,ly:dimension? "The amount of space that is put