4 \header { texidoc = "By setting @code{Staff.keySignature} directly,
5 key signatures can be set invidually per pitch.
14 \set Staff.keySignature = #`(((1 . 2) . ,SHARP) ((0 . 3) . ,FLAT))
16 \set Staff.keySignature = #`(((1 . 2) . ,FLAT) ((0 . 4) . ,DOUBLE-SHARP))