Internationale Chordnames bei deutschen Notennamen - wie? selber gelöst

[Manuela]

Wenn ich folgendes eingebe

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\version "2.25.7"
\language "deutsch"

\new ChordNames \chordmode { b4 }
erhalte ich Hb als Ausgabe, was nicht wirklich erwünscht ist.
War das immer schon so oder ist mir das nur nicht aufgefallen? Und wie kann ich zu korrekten Akkordbezeichnungen kommen?

[Malte]

Das kam mit einer der letzten Versionen (2.22 oder 2.24). Ich persönlich finde es furchtbar, weil bis dahin Eingabe- und Ausgabesprache immer fein säuberlich getrennt waren, und das nun nicht mehr gegeben ist. Mein Workaround: Noten auf deutsch eingeben und zum Schluss Frescobaldi übersetzen lassen. Das hat immer sehr zuverlässig funktioniert.

[Manuela]

Danke, Malte.

Es gibt doch diese Funktion, die deutsche Akkordnamen erzeugt. Könnte man die nicht für die internationalen umstricken?

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#(define ((chord-name->german-markup-text-alteration B-instead-of-Bb) pitch lowercase?)

   (define (pitch-alteration-semitones pitch)
     (inexact->exact (round (* (ly:pitch-alteration pitch) 2))))

   (define (conditional-string-downcase str condition)
     (if condition
         (string-downcase str)
         str))

   (let* ((name (ly:pitch-notename pitch))
          (alt-semitones  (pitch-alteration-semitones pitch))
          (n-a (if (member (cons name alt-semitones) `((6 . -1) (6 . -1)))
                   (cons 7 (+ (if B-instead-of-Bb 1 1) alt-semitones))
                   (cons name alt-semitones))))
     (make-line-markup
      (list
       (make-simple-markup
        (conditional-string-downcase
         (vector-ref #("C" "D" "E" "F" "G" "A" "H" "B") (car n-a))
         lowercase?))
       (let ((alteration (/ (cdr n-a) 2)))
         (cond
          ((and (equal? lowercase? #f) (= alteration FLAT) (= (car n-a) 7)) (make-simple-markup ""))
          ((and (= alteration FLAT) (or (= (car n-a) 5) (= (car n-a) 2) )) (make-simple-markup "s"))
          ((= alteration FLAT) (make-simple-markup "es"))
          ((and (= alteration DOUBLE-FLAT) (or (= (car n-a) 5)(= (car n-a) 2) )) (make-simple-markup "ses"))
          ((= alteration DOUBLE-FLAT) (make-simple-markup "eses"))
          ((= alteration SHARP) (make-simple-markup "is"))
          ((= alteration DOUBLE-SHARP) (make-simple-markup "isis"))
          (else empty-markup)))))))
Das ganze "isis" und "eses" Zeugs könnte man weglassen. Leider ist mein Scheme wieder mal zu eingerostet, um schnell ein Ergebnis zu bekommen.

[Manuela]

Ich habe es geschafft, indem ich in den Quellcode einer älteren Version geschaut habe. Hier ein Anwendungsbeispiel:

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\version "2.25.7"
\language "deutsch"

#(define (note-international->markup pitch lowercase?)
   "Return pitch markup for @var{pitch}."
   (define (accidental->markup alteration)
     "Return accidental markup for ALTERATION."
     (if (= alteration 0)
         (make-line-markup (list empty-markup))
         (conditional-kern-before
          (alteration->text-accidental-markup alteration)
          (= alteration FLAT) 0.094725)))
   (define (conditional-string-downcase str condition)
     (if condition
         (string-downcase str)
         str))
   (define (conditional-kern-before markup bool amount)
     "Add AMOUNT of space before MARKUP if BOOL is true."
     (if bool
         (make-line-markup
          (list (make-hspace-markup amount)
            markup))
         markup))
   (make-line-markup
    (list
     (make-simple-markup
      (conditional-string-downcase
       (vector-ref #("C" "D" "E" "F" "G" "A" "B") (ly:pitch-notename pitch))
       lowercase?))
     (accidental->markup (ly:pitch-alteration pitch)))))

\layout {
  \context {
    \ChordNames
    chordRootNamer = #note-international->markup
  }
}

\new ChordNames \chordmode { b4 es h }

[Malte]

Sehr praktisch, vielen Dank! Das werde ich sicher mal verwenden.

[Karren Brady]

In der Musiknotation steht "Hb" für das deutsche Äquivalent zu "Bb" (Bb = B-Kreuz). Um die korrekten Akkordbezeichnungen zu erhalten, kannst du stattdessen "Bb" verwenden. Es ist möglich, dass sich die Standardnotation im Laufe der Zeit geändert hat.

[Karren Brady]

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[Malte]

Sorry, das ist leider nicht richtig: Der Ton/Akkord, der auf Englisch ,,B♭" heißt, heißt auf Deutsch ,,B", nicht ,,H♭", das war auch nie anders. Die Einzigen, die ,,H♭" schreiben, sind Harfenisten bei der Notation der Pedalstellungen.