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pour info ChatGPT à l'oeuvre sur 2 echantillons: code MuseScore (xml) p


From: Michel G Laposte
Subject: pour info ChatGPT à l'oeuvre sur 2 echantillons: code MuseScore (xml) puis lilypond
Date: Wed, 31 May 2023 16:59:54 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Thunderbird/102.11.0

Bonjour

Au cas où certains n'auraient pas eu le loisir de tester ChatGPT dont le monde bruit.

ces 2 premiers exemples fournissent un commentaire du code fourni.

Le système peut fournir sa réponse en français ou toute autre langue.


en fin de ce message une réponse concernant la musique d'une étude de Chopin.

what does this code?
<note default-x="16.55" default-y="-1260.00"> <unpitched> <display-step>F</display-step> <display-octave>5</display-octave> </unpitched> <duration>4</duration> <instrument id="P18-I52"/> <voice>3</voice> <type>eighth</type> <stem>up</stem> <notehead>x</notehead> <beam number="1">begin</beam> </note>
ChatGPT

The given code is an excerpt from a MusicXML file or a similar music notation format. It represents a musical note with specific attributes. Here's a breakdown of the code:

  • <note>: This is the main element representing a note in the music notation.
  • default-x="16.55" default-y="-1260.00": These attributes specify the default horizontal and vertical positions of the note on the sheet music. The values are given in some coordinate system used by the music notation software.
  • <unpitched>: This element indicates that the note is not pitched, meaning it doesn't have a specific musical pitch. Unpitched notes are often used in percussion or other non-pitched instruments.
  • <display-step>F</display-step>: This element specifies the letter name of the note. In this case, it's "F."
  • <display-octave>5</display-octave>: This element indicates the octave of the note. The value "5" means it is in the fifth octave.
  • <duration>4</duration>: This element represents the duration of the note. The value "4" typically corresponds to a quarter note in Western music notation.
  • <instrument id="P18-I52"/>: This element refers to the instrument that should play this note. The "id" attribute identifies the instrument, but without additional context, it's difficult to determine which specific instrument is being referred to.
  • <voice>3</voice>: This element indicates the voice or part number to which the note belongs. In this case, it's the third voice.
  • <type>eighth</type>: This element specifies the type of note. "eighth" represents an eighth note, which typically lasts half the duration of a quarter note.
  • <stem>up</stem>: This element indicates the direction of the stem attached to the note. "up" means the stem is pointing upwards.
  • <notehead>x</notehead>: This element specifies the shape or style of the notehead. In this case, "x" suggests a special type of notehead, possibly used for notation-specific purposes.
  • <beam number="1">begin</beam>: This element indicates the start of a beam grouping for the note. Beams are used to connect multiple notes together to indicate rhythmic grouping.

Overall, this code represents an unpitched eighth note (F5) with a duration of 4, belonging to the third voice, with an upward stem, a special notehead shape, and starting a beam grouping.

Second code fourni tel quel en bleu (code Lilypond) et réponse instantanée de l'outil ChatGPT en noir

User
version "2.18.2" \include "english.ly" \pointAndClickOff %#(ly:set-option 'point-and-click #f) % supprime les liens "point-and-click" du pdf \header { title = "Both sides the tweed" % subtitle = "" instrument = "Accordéon diatonique" poet = "" composer = "Scottish song" tagline = #(strftime "%e %B %Y" (localtime (current-time))) } \paper { %%%%% régler l'espacement des portées : system-system-spacing.minimum-distance = #14 %%%%% rapprocher les portées : % system-system-spacing = #'((basic-distance . 0.1) (padding . 0)) %%%%% espacer les portées pour remplir la page : % ragged-last-bottom = ##f % ragged-bottom = ##f %%%%% forcer le nombre de pages : % page-count = #1 } \layout { \set Score.markFormatter = #format-mark-box-alphabet \context { \Score \remove "Bar_number_engraver" } } P=\upbow T=\downbow C=\markup {\circle \bold C} G=\markup {\circle \bold G} #(set-global-staff-size 24) % \markup { \vspace #1 } voixI = \relative c'' { \key a \minor \numericTimeSignature \time 3/4 \set Timing.beamExceptions = #'() % \set Staff.instrumentName = #"I" \partial 4. { a8-2\T b4 | } \repeat volta 2 { \mark \default c4. b8 a4 | c4. d8 e4-4 | a2.-4_\C~ | a4. c8\P a4\T | \break g4.\P e8 d4 | c4.\T d8 e4 | g,2.-1\P | e4.-1\P a8-2\T b4\P | \break c4. b8 a4 | c4. d8 e4 | a2.~ | a4. c8 a4 | \break g e c | d b g | } \alternative { { a2.~ | a4. a8 b4 | } { a2.~ | a2 a'4-4_\C | \break } } \repeat volta 2 { \mark \default a2\T-4_\C a4 | a4. g8\P e4 | g2.~ | g4. a8\T g4\P | \break e4.-4 d8 c4 | c4. d8 e4 | g,2.-1 | e4.-1 a8-2\T b4\P | \break c4. b8 a4 | c4. d8 e4 | a2.~ | a4. c8 a4 | \break g e c | d b g | } \alternative { { a2.~ | a2 a'4 | } { a,2.~ | a | \bar"|." } } } accords = \chordmode { \set chordChanges = ##t s4. a2.:m a:m f f c a:m g e a:m a:m f f c g a:m a:m a:m a:m f f c c a:m a:m g e a:m a:m f f c g a:m a:m a:m a:m } \score { % \header { piece = "intro" } << \voixI \new ChordNames \accords >> \layout{} \midi { } } \markup { {\circle \bold G} = rangée de Sol ; \hspace #4 {\circle \bold C} = rangée de Do }
ChatGPT

The given code is written in the LilyPond programming language, which is used for typesetting sheet music. It defines the musical score for a song called "Both sides the tweed" performed on the diatonic accordion. Let's break down the code:

  • \version "2.18.2": This specifies the version of LilyPond used to compile the code.
  • \include "english.ly": This includes a file named "english.ly" which likely contains definitions and settings specific to the English language.
  • \pointAndClickOff: This command turns off the point-and-click functionality, which allows interactive elements in the generated PDF.
  • \header: This block contains metadata about the composition, such as the title, composer, and instrument.
  • \paper: This block contains settings related to the layout and appearance of the sheet music.
  • \layout: This block specifies the layout settings for the sheet music, including the score mark formatter and the removal of the bar number engraver.
  • P=\upbow, T=\downbow, C=\markup{\circle \bold C}, G=\markup{\circle \bold G}: These lines define custom markup variables. \upbow, \downbow, \circle, and \bold are LilyPond commands used to format the text and create symbols.
  • #(set-global-staff-size 24): This sets the staff size for the entire score to 24.
  • voixI = \relative c'' { ... }: This defines the music for the first voice (voixI). It contains a series of musical expressions using LilyPond syntax to notate the melody and rhythm.
  • accords = \chordmode { ... }: This defines the chord progression using LilyPond's chord mode syntax. It specifies the chords to be displayed above the melody.
  • \score { ... }: This defines the structure of the score. It includes the voixI (melody) and the chord names.
  • \markup { ... }: This defines additional text markup to be displayed alongside the sheet music. It provides explanations for the symbols used in the code.

The code generates sheet music for the song "Both sides the tweed" played on the diatonic accordion. It includes the melody, chord symbols, and additional annotations.

User
more on this score
ChatGPT

Certainly! The provided code represents the musical score for the song "Both sides the tweed" performed on the diatonic accordion. Let's delve deeper into the various elements and sections of the score:

  1. \header: This block contains metadata about the composition, including the title, composer, instrument, poet (which is left empty in this case), and a tagline with the current date.

    • title = "Both sides the tweed": Specifies the title of the composition.
    • composer = "Scottish song": Indicates the composer or origin of the song.
    • instrument = "Accordéon diatonique": Specifies the instrument used to perform the composition.
  2. \paper: This block contains settings related to the layout and appearance of the sheet music. It is currently commented out (denoted by %) in the provided code, so the default settings will be used.

  3. \layout: This block specifies the layout settings for the sheet music. It customizes the mark formatter to use a specific format for markings (using the format-mark-box-alphabet function) and removes the "Bar_number_engraver" from the score.

  4. Variable Definitions:

    • P=\upbow, T=\downbow, C=\markup{\circle \bold C}, G=\markup{\circle \bold G}: These lines define custom markup variables. They assign specific symbols or formatting to these variables, which can be used later in the code.
  5. voixI = \relative c'' { ... }: This block defines the musical notation for the first voice (voixI) using LilyPond's relative pitch notation. It includes the melody of the song with note durations, rests, and articulation markings.

    • \key a \minor: Sets the key signature to A minor.
    • \numericTimeSignature: Specifies the time signature as numeric (3/4).
    • \time 3/4: Sets the time signature explicitly as 3/4.
    • \set Timing.beamExceptions = #'(): Disables automatic beaming of notes, allowing manual control.
    • \partial 4. { a8-2\T b4 | }: Represents a partial measure with an eighth note followed by a quarter note, using the T symbol for downbow.
    • The subsequent code represents the repeating sections of the melody, with variations denoted using \alternative. The melody includes a mix of notes, rests, articulation markings (such as \P for upbow), and a range of notes spanning multiple octaves.
  6. accords = \chordmode { ... }: This block defines the chord progression using LilyPond's chord mode syntax. It specifies the chords to be displayed above the melody. The chords are written using a combination of letters, numbers, and symbols that represent different chord qualities and inversions.

  7. \score { ... }: This block defines the structure of the score. It includes the voixI (melody) and the chord names. The \layout{} command is used to suppress any automatic layout rendering.

  8. \markup { ... }: This block provides additional text markup to be displayed alongside the sheet music. It explains the symbols used in the code, with G representing the Sol row on the accordion and C representing the Do row.

The resulting score will include the musical notation for the melody, chord symbols above the staff, and additional annotations. It can be compiled using LilyPond to generate a PDF or other file format that displays the sheet music.

Revolutionary Study by chopin
ChatGPT

"Revolutionary Study" is not a specific piece by Frédéric Chopin. However, there is a famous study composed by Chopin called "Étude Op. 10, No. 12," commonly known as the "Revolutionary Étude." It is one of Chopin's most well-known and technically challenging piano compositions.

The "Revolutionary Étude" was composed in 1831 during a period of political turmoil in Poland, Chopin's homeland. The study is known for its dramatic and powerful nature, reflecting the emotions and atmosphere of the time. It features rapid octave passages, intense chords, and dynamic contrasts, requiring both technical proficiency and emotional _expression_ from the pianist.

The piece begins with a strong, fortissimo statement in the key of C minor, followed by a series of virtuosic runs and dramatic chord progressions. Throughout the étude, Chopin explores various musical textures and uses the full range of the piano, creating a sense of tension and urgency. The middle section provides a brief respite with a lyrical and expressive melody in the relative major key, E-flat major. However, the turbulent and energetic character of the piece returns, leading to a powerful conclusion with cascading octaves and resounding chords.

The "Revolutionary Étude" showcases Chopin's mastery of piano technique and his ability to convey profound emotions through his music. It remains a popular and frequently performed piece among pianists and continues to captivate audiences with its intensity and brilliance.


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