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+ | =====Module Advanced Sheet Music Analysis with music21: Searching for Tone Sequences ===== | ||
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+ | This module explains how to search for certain patterns in a music file. | ||
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+ | In general, patterns are structures that occur several times. In music, there are many such patterns: melodic-rhythmic motifs, accompaniment figures, rhythms, chord progressions, | ||
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+ | Repetition and variation are two of the fundamental structural principles of music. Of great interest, therefore, is the question of how the principles of repetition and variation come into play in a composition, | ||
+ | * Tutorial [[https:// | ||
+ | * Tutorial [[https:// | ||
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+ | | The interactive program [[en: | ||
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+ | In this introduction, | ||
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+ | ==== Searching for melodic motifs or melodic accompaniment figures (melody cells) ==== | ||
+ | The simplest and already very productive search option is the | ||
+ | * Search for certain **pitch sequences** (without duration values). | ||
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+ | If you add the rhythmic structure (i.e. with duration values), you get a | ||
+ | * search for melody cells as **rhythmic pitch sequences**. | ||
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+ | These two search options are possible with //music21// and are described in the first tutorial | ||
+ | [[https:// | ||
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+ | Besides searching for // | ||
+ | * Search for **interval sequences** or for chromatic transpositions of a melody cell. | ||
+ | * Search for diatonic transpositions (within a key, i.e. individual intervals are changed). | ||
+ | * Search for variations where individual tones or intervals or duration values of the melody cell are changed. | ||
+ | * Search for variations where additional tones are inserted or missing. | ||
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+ | In //music21// only the first of these //fuzzy// search possibilities can be realized reliably, whereby the path via transpositions must be chosen. It is described in the [[https:// | ||
+ | A search for interval sequences is possible with the CAMAT tool in a quite simple way, see [[en: | ||
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+ | The **input** of the search query in //music21// is entered as a melody cell in an easy to learn note syntax. | ||
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+ | The **output** of the search results is given as a list (voice, bar and bar position as the beginning of the pattern searched for) or is labelled in the score, which can be viewed in part in the browser as well as in full via // | ||
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+ | //The search is of course also possible within several pieces: A narrowing of the search corpus can be made according to various criteria, including composer, genre and period.// | ||
+ | ==== Deepening ==== | ||
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+ | Search possibilities for melodic motifs in different music corpora are offered by the [[http:// | ||
+ | [[https:// | ||
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+ | The research projects [[https:// | ||
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