Grammatical Music Composition with Dissimilarity Driven Hill Climbing

  • Róisín Loughran
  • James McDermott
  • Michael O’Neill
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 9596)

Abstract

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.

Keywords

Algorithmic composition Hill-climbing Grammar 

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Copyright information

© Springer International Publishing Switzerland 2016

Authors and Affiliations

  • Róisín Loughran
    • 1
  • James McDermott
    • 1
  • Michael O’Neill
    • 1
  1. 1.Natural Computing Research and Applications GroupUniversity College DublinDublinIreland

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