Grammatical Music Composition with Dissimilarity Driven Hill Climbing

An algorithmic compositional system that uses hill climbing to create short melodies is presented. A context free grammar maps each section of the resultant individual to a musical segment resulting in a series of MIDI notes described by pitch and duration. The dissimilarity between each pair of seg...

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Bibliographic Details
Published inEvolutionary and Biologically Inspired Music, Sound, Art and Design Vol. 9596; pp. 110 - 125
Main Authors Loughran, Róisín, McDermott, James, O’Neill, Michael
Format Book Chapter
LanguageEnglish
Published Switzerland Springer International Publishing AG 01.01.2016
Springer International Publishing
SeriesLecture Notes in Computer Science
Subjects
Algorithmic composition
Algorithms & data structures
Artificial intelligence
Grammar
Hill-climbing
User interface design & usability
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ISBN9783319310077
3319310070
ISSN0302-9743
1611-3349
DOI10.1007/978-3-319-31008-4_8

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Summary:An algorithmic compositional system that uses hill climbing to create short melodies is presented. A context free grammar maps each section of the resultant individual to a musical segment resulting in a series of MIDI notes described by pitch and duration. The dissimilarity between each pair of segments is measured using a metric based on the pitch contour of the segments. Using a GUI, the user decides how many segments to include and how they are to be distanced from each other. The system performs a hill-climbing search using several mutation operators to create a population of segments the desired distances from each other. A number of melodies composed by the system are presented that demonstrate the algorithm’s ability to match the desired targets and the versatility created by the inclusion of the designed grammar.
ISBN:9783319310077
3319310070
ISSN:0302-9743
1611-3349
DOI:10.1007/978-3-319-31008-4_8