@code{breathing-sign}, @code{clef}, @code{custos}, @code{staff-bar},
@code{left-edge}, @code{key-cancellation}, @code{key-signature}, and
@code{time-signature}.
@code{breathing-sign}, @code{clef}, @code{custos}, @code{staff-bar},
@code{left-edge}, @code{key-cancellation}, @code{key-signature}, and
@code{time-signature}.