Hier der Ansatz von Robin Bannister.
Er hackt das Arpeggio und seine Funktion thBr braucht einen string als Argument.
In diesem string gibt es verschiedene Einstellmöglichkeiten via Ziffern und Sonderzeichen.
Robin hat leider keine Doku dazu gepostet, afaict. Ich bin mit dem Erforschen der Möglichkeiten auch noch nicht sehr weit gediehen, aber was ich weiß hab' ich ins erste Beispiel geschrieben. Den Rest wirst Du wohl auspropieren müssen.
\version "2.18.0"
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +thumb bracket
#(define (make-thumb-bracket-props location spec-str settings-alist)
(define (inchar? index) (> (string-length spec-str) index))
(define (inchar index) (string-ref spec-str index))
(define (char->dir ch)
(case (char-upcase ch) ((#\R) 1) ((#\L) -1) (else 0)))
(define (char->digit ch)
(if (char-numeric? ch) (- (char->integer ch) (char->integer #\0)) 0))
(define (inhit->1 key-str) (if (string-contains spec-str key-str) 1 0))
(define (get key) (assq-ref settings-alist key))
(define (warn p1 p2) (ly:warning
(_ " ~a bad thumb-bracket ~a ~a~a~a") location p1 "" p2 ""))
(let* ( ;% decode spec
(vdir (if (inchar? 0) (char->dir (inchar 0)) 0))
(vbigger (* 0.5 (if (inchar? 1) (char->digit (inchar 1)) 0)))
(vfurther (* 0.5 (if (inchar? 2) (char->digit (inchar 2)) 0)))
(hcloser (* 0.5 (if (inchar? 3) (char->digit (inchar 3)) 0)))
(hrear (* 0.5 (if (inchar? 4) (char->digit (inchar 4)) 0)))
(vbigger+ (* 5 (string-count spec-str #\|)))
(posdir ((if (string-contains spec-str "*") - +) vdir))
(hcloser? (eq? (string-contains spec-str "!") #f))
(vtip=? (string-contains spec-str "="))
(hdir-req (- (inhit->1 "]") (inhit->1 "[")))
(closed? (char-lower-case? (inchar 0))))
(if (zero? vdir) (begin (warn "first char in" spec-str) '())
(let* ( ;% collect settings
(hdir-init (get 'hdir-init)) (htip (get 'htip))
(vtip (get (if vtip=? 'vtip= 'vtip)))
(vstem (get 'vstem)) (vmin (get 'vmin)) (hvernier (get 'hvernier))
(vO 0) (hO 0) (hpad-base 0.5) ;% givens
(hdir (if (zero? hdir-req) hdir-init hdir-req))
(hflip? (positive? hdir))
(h-interval
(if (positive? hdir) (cons hO (+ htip hrear)) (cons (- hrear) htip)))
(vsize (+ vtip (if closed? vtip vstem) vbigger vbigger+))
(vsize+ (if (and closed? (< vsize vmin)) (- vmin vsize) 0))
(vshift (+ vfurther vtip (* 0.5 vsize+)))
(bracket (lambda (grob) (let* ( ;% collect chord range from grob
(vnote-lo-hi (ly:grob-property grob 'positions))
(vnote ((if (eq? posdir 1) cdr car) vnote-lo-hi)))
(grob-interpret-markup grob (markup #:translate (cons
((if (positive? hdir) - +) hvernier) (- vnote (* vdir vshift)))
#:combine #:draw-line (cons htip vO) #:combine
#:translate (cons hO (if closed? (* vdir (+ vsize vsize+)) vO))
#:draw-line (cons htip vO)
#:translate (cons (if (positive? hdir) htip hO) vO)
#:draw-line (cons hO (* vdir (+ vsize vsize+)))))))))
;% alist of props for misusing Arpeggio as a thumb bracket
`((stencil . ,bracket)
(X-extent . ,h-interval)
(padding . ,((if hcloser? - +) hpad-base hcloser))
(direction . ,hdir)
(thickness . ,(get 'weight)))))))
thumbBracketEx = #(define-music-function
(parser location spec settings) (string? list?)
(let* (
(props (make-thumb-bracket-props location spec settings)))
(define (get key) (assq-ref props key))
(if (null? props) (make-music 'SequentialMusic 'void #t)
#{
\once \override Arpeggio.stencil = #(get 'stencil)
\once \override Arpeggio.X-extent = #(get 'X-extent)
\once \override Arpeggio.padding = #(get 'padding)
\once \override Arpeggio.direction = #(get 'direction)
\once \override Arpeggio.thickness = #(get 'thickness)
$(make-music 'EventChord 'elements (list (make-music 'ArpeggioEvent)))
#})))
thumbBracket = #(define-music-function (parser location spec) (string?)
(let ((settings thumbBracketSettings)) ;% as Defaults, or user defined
((ly:music-function-extract thumbBracketEx)
parser location spec settings)))
thumbBracketDefaults = #(quasiquote(
(hdir-init . ,LEFT) ;% usual placement wrt note: on RIGHT or LEFT
(weight . 1.5 ) ;% line thickness
(htip . 0.8 ) ;% horizontal length of bracket tip
(vtip . 0.75 ) ;% usual vertical overlap beyond notehead centre
(vtip= . 0.30 ) ;% alternative vertical overlap
(vstem . 1.25 ) ;% length of an unextended open bracket (excl. tip)
(vmin . 0.6 ) ;% minimum length of a closed bracket
(hvernier . 0.2 ) ;% horizontal quasi-extra-offset
))
thumbBracketSettings = \thumbBracketDefaults
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% -thumb bracket
#(define thBr thumbBracket) thbR = \thBr "R" thbL = \thBr "L"
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Ein bißchen Erklärung, es gibt aber noch mehr zu erforschen ;)
\transpose a c'
{
\thBr "R" a'4
\thBr "L" a'4
\thBr "r" a'4
\thBr "l" a'4
\thBr "R6" a'4 % erste Ziffer vertikale Länge
\thBr "L6" a'4 % erste Ziffer vertikale Länge
\thBr "R08" a'4 % zweite Ziffer vertikale Versetzung
\thBr "L08" a'4 % zweite Ziffer vertikale Versetzung
\thBr "R008" a'4 % dritte Ziffer horizontale Versetzung
\thBr "L008" a'4 % dritte Ziffer horizontale Versetzung
\thBr "R0008" a'4 % vierte Ziffer horizontales padding vor der Klammer
\thBr "L0008" a'4 % vierte Ziffer horizontales padding vor der Klammer
\thBr "R=" a'4 % "=" bedeutet einen alternativen vertikalen Ansatzpunkt
\thBr "L=" a'4 % "=" bedeutet einen alternativen vertikalen Ansatzpunkt
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%% Literaturbeispiele
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key f \major
\time 4/4
\override Staff.TimeSignature.stencil = ##f
}
rhhi = { c'''16--[ b''16-- d'''16-- f''16--] }
rhlo = { d''32[ \thBr "L9" f''32 ees''32 d''32 ~ d''16 c''32 b'32] }
lhhi = { g'32[ aes'32 g'32 f'32 g'32 f'32 ees'32 d'32] }
lhlo = { s4 }
\markup "Reger 14"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef treble \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key bes \major
\time 4/4
\override Staff.TimeSignature.stencil = ##f
}
rhhi = { <bes' bes''>4 <c''! a''>16[ <bes' g''>16 c''16 <ees''! g''>16] }
rhlo = { d''8[ ees''!8] \thBr "L" fis'16[ g'16 \thBr "R" a'16 <g' bes'>16] }
lhhi = { d'8[ ees'!8] c'16[ bes16 c'16 bes16] }
lhlo = { bes4 fis16[ g16 a16 bes16] }
\markup "Reger 17"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef treble \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key bes \major
\time 4/4
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
\override Staff.TimeSignature.stencil = ##f
}
rhhi = { <ees' g' bes' ees''>2-> <c' f' a' c''>-> <f' f''>2.*2/3-> }
rhlo = { s1 <a' c''>8--[ <f' a'>8--] <f' ~ bes'>8--[ <f' c''>8--] }
lhhi = { c8[ g16 a16] bes16[ g16 c'8]
\thBr "R" c'16[ d'16 ees'16 d'16] c'16[ d'16 ees'16 c'16]
\thBr "L4*" <a c'>8--[ <f a>8--] <f bes>8--[ c'8--] }
lhlo = { <c, c>4.-- c8-. <f, f>4.-- a,8-. d4-- d8--[ c8--] }
\markup "Reger 60"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef bass \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key aes \major
\time 9/8
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
\override Staff.TimeSignature.stencil = ##f
}
rhhi = { ees''4.-> ees''4.-> ~ ees''8[ d''8 ees''8] }
rhlo = { \thBr "L" <aes aes'>8.[ <aes aes'>16 <aes aes'>8] r8
\thBr "R*" <ees' g'>8-.[ <ees' g'>8-.] <ees' aes'>4. }
lhhi = { \oneVoice s4. r8 s4 s4. }
lhlo = { \thBr "R" <c ees ees'>8.[ <c ees ees'>16 <c ees ees'>8] s8
<bes, ees des'>8^.[ <beses, ees des'>8^.] <aes, ees c'>4.^> }
\markup "Scriabin IMSLP #02002 II bar48"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef bass \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key fis \major
\time 12/8
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
\override Staff.TimeSignature.stencil = ##f
}
rhhi = { eis'2. ~ eis'4. eis'4. }
rhlo = { cis'2. ~ cis'4. cis'4. }
lhhi = { \thBr "r4*=" <eis gis>2. ~ gis4 cis8 gis!4 g8 }
lhlo = { <cis, cis>2. <gisis,, gisis,>2. }
\markup "Scriabin IMSLP 10999 p5"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef bass \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key bes \major
\time 9/8
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
\override Staff.TimeSignature.stencil = ##f
}
rhhi = { \partial 4 <cis' cis''>8[\( <d' d''>8] <ees' ees''>4
<e' e''>8 <fis' fis''>4 <g' g''>8 <g' g''>4 <fis' fis''>8\) }
rhlo = { \partial 4 r8 r8 r8 bes'8[ bes'8] r8 e''8[ e''8]
<a' ees''>8[ <a' ees''>8 <c'' ees''>8] }
lhhi = { \partial 4 \oneVoice r8 r8 r8 s4
\once \override Rest.X-extent = #'(0 . 2.5)
r8 s4 s4.}
lhlo = { \partial 4 s4 s8 <cis, cis>8[
\thBr "R" <g bes g'>8] s8
\thBr "R100=" %"R102="
<bes e' bes'>8[ <cis, cis>8]
\stemUp <cis, cis>8[<c, c>8 <a, a>] }
\markup "Scriabin IMSLP 08382 p47"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef bass \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key bes \major
\time 4/4
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
\override Staff.TimeSignature.stencil = ##f
}
arpLengthenTo = #(define-music-function (parser location bound) (integer?)
#{ \once \override Arpeggio.positions = #(lambda (grob)
(interval-union (cons bound bound) (ly:arpeggio::calc-positions grob)))
#})
%%% saw what looked like tie pushing arpeggio vertically when doubled up alto
rhhiA = {
\once \override Arpeggio.arpeggio-direction = #down
\once \override NoteColumn.force-hshift = #-0.2
<\tweak transparent ##t d' ees'' g'' c'''>1\arpeggio ~ <ees'' g'' c'''>1 }
rhhiB = {
\once \override Arpeggio.arpeggio-direction = #down
\arpLengthenTo #-4
<ees'' g'' c'''>1\arpeggio ~ <ees'' g'' c'''>1 }
rhhi = { \rhhiA \rhhiB }
rhlo = \repeat unfold 2 { \thBr "l22]" <f' bes'>1 ~ <f' bes'>1 }
lhhi = \repeat unfold 2 { \oneVoice r1 r1}
lhlo = \repeat unfold 2 { s1 s1 }
\markup "F9sus"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef bass \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
global = {
\key f \major
\time 3/4
\mergeDifferentlyHeadedOn
\mergeDifferentlyDottedOn
}
rhhi = { a'2. }
rhlo = { r4
\thumbBracketEx "L442" #(acons 'htip 2.5 thumbBracketSettings)
<a c'>8[ <bes d'>8] <c' e'>8[ <a c'>8] }
lhhi = { f,2.}
lhlo = { \hideNotes f,16 } % spacing hack
\markup "Possibility"
\score {
\new PianoStaff <<
\new Staff = "rh" { \clef treble \global << \rhhi \\ \rhlo >>}
\new Staff = "lh" { \clef bass \global << \lhhi \\ \lhlo >>}
>>
\layout { indent = 0.0\cm }
}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\new Staff = "down" {
\clef bass
\set tieWaitForNote = ##t
\times 2/3 { cis,8~ d~ \thBr "R4001" a~ } <cis, d a>4
\times 2/3 { d,8~ fis~ \thBr "R" d'~ } <d, fis d'>4
\bar "||"
}
Gruß,
Harm
