- (transparent ,boolean? "This is almost the same as setting
-@code{print-function} to @code{#f}, but this retains the dimensions of
-this grob, which means that grobs can be erased individually.")
- (bracket-visibility ,boolean-or-symbol? "This controls the
-visibility of the tuplet bracket. Setting it to false will prevent
-printing of the bracket. Setting the property to @code{'if-no-beam}
-will make it print only if there is no beam associated with this
-tuplet bracket.")
- (number-visibility ,boolean-or-symbol? "Like
-@code{bracket-visibility}, but for the number.")
-
- (break-visibility ,vector? "A vector of 3 booleans, #(end-of-line unbroken begin-of-line).
-#t means visible, #f means killed.")
- (flag-count ,number? "The number of tremolo beams.")
-
+ (tie-configuration ,list? "List of (@var{position} . @var{dir})
+pairs, indicating the desired tie configuration.")
+ (transparent ,boolean? "This makes the grob invisible.")
+ (uniform-stretching ,boolean? "If set, items stretch proportional
+to their durations. This looks better in complex polyphonic patterns")
+ (used ,boolean? "If set, this spacing column is kept in the spacing problem")