multiverseSkips and alt functions

basic_format_and_style_settings.ly

@@ -158,4 +158,12 @@ rightHyphen = \lyricmode {
 leftHyphen = \lyricmode {
   \once \override StanzaNumber.font-series = #'normal
   \set stanza = "-"
-}
+}
+
+multiverseSkips =
+#(define-music-function (parser location skips) (number?)
+  #{ \tag #'multiVerse { \repeat unfold #skips { \skip4 } } #})
+
+alt =
+#(define-music-function (parser location a b) (ly:music? ly:music?)
+  #{ \tag #'firstVerse { #a } \tag #'multiVerse { #b } #})