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Automatic phrase continuation from guitar and bass guitar melodies

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dc.contributor.author Cherla, Srikanth
dc.contributor.author Purwins, Hendrick
dc.contributor.author Marchini, Marco, 1984-
dc.date.accessioned 2023-03-31T06:05:37Z
dc.date.available 2023-03-31T06:05:37Z
dc.date.issued 2013
dc.identifier.citation Cherla S, Purwins H, Marchini M. Automatic phrase continuation from guitar and bass guitar melodies. Comput Music J. 2013;37(3):68-81. DOI: 10.1162/COMJ_a_00184
dc.identifier.issn 0148-9267
dc.identifier.uri http://hdl.handle.net/10230/56383
dc.description.abstract A framework is proposed for generating interesting, musically similar variations of a given monophonic melody. The focus is on pop/rock guitar and bass guitar melodies with the aim of eventual extensions to other instruments and musical styles. It is demonstrated here how learning musical style from segmented audio data can be formulated as an unsupervised learning problem to generate a symbolic representation. A melody is first segmented into a sequence of notes using onset detection and pitch estimation. A set of hierarchical, coarse-to-fine symbolic representations of the melody is generated by clustering pitch values at multiple similarity thresholds. The variance ratio criterion is then used to select the appropriate clustering levels in the hierarchy. Note onsets are aligned with beats, considering the estimated meter of the melody, to create a sequence of symbols that represent the rhythm in terms of onsets/rests and the metrical locations of their occurrence. A joint representation based on the cross-product of the pitch cluster indices and metrical locations is used to train the prediction model, a variable-length Markov chain. The melodies generated by the model were evaluated through a questionnaire by a group of experts, and received an overall positive response.
dc.format.mimetype application/pdf
dc.language.iso eng
dc.publisher MIT Press
dc.relation.ispartof Computer Music Journal. 2013;37(3):68-81.
dc.rights © MIT Press (Publisher version at http://mitpress.mit.edu)
dc.subject.other Composició musical
dc.subject.other Música -- Disseny assistit per ordinador
dc.title Automatic phrase continuation from guitar and bass guitar melodies
dc.type info:eu-repo/semantics/article
dc.identifier.doi http://dx.doi.org/10.1162/COMJ_a_00184
dc.rights.accessRights info:eu-repo/semantics/openAccess
dc.type.version info:eu-repo/semantics/publishedVersion


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