Flamenco spanner

This snippet shows how to create a flamenco style spanner (e.g., as in Frederick Noad's book).

\version "2.24.0"

%% http://lsr.di.unimi.it/LSR/Item?id=911

% added by P.P.Schneider on April 2014.

%here starts the snippet:

strokeUp = \markup\combine\override #'(thickness . 1.3) \draw-line #'(0 . 2.8)\raise #2.8 \arrow-head #Y #UP ##f 
strokeDown = \markup\combine\arrow-head #Y #DOWN ##f \override #'(thickness . 1.3) \draw-line #'(0 . 2.8)

RHp = \rightHandFinger #1 
RHi = \rightHandFinger #2
RHm = \rightHandFinger #3
RHa = \rightHandFinger #4
RHx = \rightHandFinger #5
RHu = \rightHandFinger \strokeUp 
RHd = \rightHandFinger \strokeDown

rasgUp = {
  \once\override TextSpanner.style = #'line
  \once\override TextSpanner.thickness = #1.3
  \once\override TextSpanner.bound-details.left.padding = #-0.5
  \once\override TextSpanner.bound-details.left.text =
    \markup\concat { 
      \magnify #0.7 \fontsize #2 \raise #1.1 \rotate # 90 
      \concat { 
        \musicglyph "scripts.trill_element" 
        \musicglyph "scripts.trill_element" 
        \musicglyph "scripts.trill_element" 
      }
      \hspace # -0.2 
    }
  \override TextSpanner.bound-details.right.text =
    \markup\concat { 
      \hspace # -.4 \magnify #0.7 \raise #2.8 
      \column {
        \fontsize #2 \arrow-head #Y #UP ##f
        \vspace # -0.3
        \override #'(thickness . 1.3)
        \draw-line #'(0 . 2.7) 
      }
    }
  \once\override TextSpanner.bound-details.right.padding = #-0.5
}

rasgDown = {
  \once\override TextSpanner.style = #'line
  \once\override TextSpanner.thickness = #1.3
  \once\override TextSpanner.bound-details.left.padding = #-0.5
  \once\override TextSpanner.bound-details.left.text =
    \markup\concat { 
      \magnify #0.7 \fontsize #2 \raise #1.1 \rotate # 90 
      \concat { 
        \musicglyph "scripts.trill_element" 
        \musicglyph "scripts.trill_element" 
        \musicglyph "scripts.trill_element" 
      }
      \hspace # -0.2 
    }
  \override TextSpanner.bound-details.right.text =
    \markup\concat { 
      \hspace # -.4 \magnify #0.7 
      \column {
        \fontsize #2 
        \override #'(thickness . 1.3)
        \draw-line #'(0 . -2.8) 
        \vspace # -.2
        \fontsize #2 
        \arrow-head #Y #DOWN ##f
      }
    }
  \once\override TextSpanner.bound-details.right.padding = #-0.5
}

musicOne = {
  \set strokeFingerOrientations = #'(up)
  \override StrokeFinger.add-stem-support = ##t
  \override StrokeFinger.staff-padding = #5
  \override NoteColumn.ignore-collision = ##t
  \partial 4
  <a, e a cis' e'\RHd>8  <a, e a cis' e'\RHu>8
  <e, b, e gis d' e'\RHd>4 
  \tuplet 3/2 { \rasgUp <e, b, e gis d' e'>8 \startTextSpan q q }
  q4 \stopTextSpan
  <e, b, e gis d' e'\RHd>8 <e, b, e gis d' e'\RHu>
  s8
}

fingOne = { 
  \set strokeFingerOrientations = #'(down)
  \stemUp
  \hideNotes
  \partial 4 s4
  s4 e,8*2/3\RHa e,\RHm e,\RHi e,4\RHi e,8\RHi e,\RHi
}

\markup\italic\concat { "Right hand movment ends up (tanguillo)"\hspace #.3 ":" }

\score {
  \new Staff <<
    \clef "G_8"
    \key a\major
    \context Voice = "Soprano" { \voiceOne << \musicOne >> }
    \context Voice = "Alto" { \voiceTwo << \fingOne >> } 
  >>
  \layout { }
}

musicTwo = {
  \set strokeFingerOrientations = #'(up)
  \override StrokeFinger.add-stem-support = ##t
  \override NoteColumn.ignore-collision = ##t
  \partial 4
  <e, b, e gis b e'\RHd>8  <e, b, e gis b e'\RHu>
  \rasgDown <f a c' e'>16 \startTextSpan q q  \stopTextSpan
    <f a c' e'\RHu> <f a c' e'\RHd>8 <f a c' e'\RHu>
    \rasgDown <e, b, e gis b e'>16 \startTextSpan q q  \stopTextSpan
    <e, b, e gis b e'\RHu>
  s8
}

fingTwo = { 
  \set strokeFingerOrientations = #'(down)
  \stemUp
  \hideNotes
  \partial 4 s4
  e16\RHa e\RHm e\RHi e\RHi s4 e,16\RHa e,\RHm e,\RHi e,\RHi 
}

\markup\italic\concat { "Right hand movment ends down (soléares)"\hspace #.3 ":" }

\score {
  \new Staff <<
    \clef "G_8"
    \time 3/4
    \context Voice = "Soprano" { \voiceOne << \musicTwo >> }
    \context Voice = "Alto" { \voiceTwo << \fingTwo >> } 
  >>
  \layout { }
}

\paper { tagline = ##f }