Modelling the Syntax of North Indian Melodies With a Generalized Graph Grammar

Widdess, Richard; Finkensiep, Christoph; Rohrmeier, Martin

Abstract

Hierarchical models of music allow explanation of highly complex musical structure based on the general principle of recursive elaboration and a small set of orthogonal op- erations. Recent approaches to melodic elaboration have converged to a representation based on intervals, which al- lows the elaboration of pairs of notes. However, two prob- lems remain: First, an interval-first representation obscures one-sided operations like neighbor notes. Second, while models of Western melody styles largely agree on step- wise operations such as neighbors and passing notes, larger intervals are either attributed to latent harmonic properties or left unexplained. This paper presents a grammar for melodies in North Indian raga music, showing not only that recursively applied neighbor and passing note oper- ations underlie this style as well, but that larger intervals are generated as generalized neighbors, based on the tonal hierarchy of the underlying scale structure. The notion of a generalized neighbor is not restricted to ragas but can be transferred to other musical styles, opening new perspec- tives on latent structure behind melodies and music in gen- eral. The presented grammar is based on a graph represen- tation that allows one to express elaborations on both notes and intervals, unifying and generalizing previous graph- and tree-based approaches.

Citation

Widdess, R., Finkensiep, C., & Rohrmeier, M. (2019). Modelling the Syntax of North Indian Melodies With a Generalized Graph Grammar. Proceedings of the International Society for Music Information Retrieval Conference, 2019, 462-469. https://doi.org/10.5281/zenodo.3527843

• Journal Article Type: Article
• Acceptance Date: Jun 18, 2019
• Publication Date: Nov 1, 2019
• Deposit Date: Jul 1, 2019
• Publicly Available Date: Jul 1, 2019
• Electronic ISSN: 3006-3094
• Peer Reviewed: Peer Reviewed
• Volume: 2019
• Pages: 462-469
• DOI: https://doi.org/10.5281/zenodo.3527843
• Keywords: Indian music, raga, melody, music syntax, music analysis
• Publisher URL: http://archives.ismir.net/ismir2019/paper/000055.pdf
• Related Public URLs: https://ismir.net/conferences/
• Additional Information: Additional Information : ISBN: 9781732729919