+ (middleCClefPosition ,number? "The position of the middle C,
+as determined only by the clef. This can be calculated by looking at
+@code{clefPosition} and @code{clefGlyph}.")
+ (middleCOffset ,number? "The offset of
+middle C from the position given by @code{middleCClefPosition} This
+is used for ottava brackets.")