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An algorithmic approach to South Indian classical music

Garani, Shayan Srinivasa and Seshadri, Harish (2019) An algorithmic approach to South Indian classical music. In: JOURNAL OF MATHEMATICS AND MUSIC .

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Official URL: https://doi.org/ 10.1080/17459737.2019.1604845

Abstract

We develop a theoretical framework for representation and automated generation of South Indian classical music. The foundational part of the latter is based on symbolic dynamics and is implemented by translating the lexicographic rules for a raga to constraints on a Markov chain whose state space is a layered graph. We analyze the statistical properties of this Markov chain from the point of view of information theory. We also develop several tools in music signal processing, such as, (a) a procedure for automated generation of gamakas or ornamental notes, unique to South Indian classical music, (b) rhythm synchronization, and (c) an algorithm for perceptual scale shifts. The Online Supplement has computer synthesized music from sankarabharadna raga, rhythm synchronized music for a Mohana raga composition, original and synthesized gamakas over madhyama for Begadda and Nilambari ragas, and perceptually scale shifted ragas Hindodla, Madhyamavati, suddha saveri, and Udaya ravi chandrika ragas from the base Mohana raga.

Item Type: Journal Article
Additional Information: Copyright for this article belongs to JOURNAL OF MATHEMATICS AND MUSIC
Department/Centre: Division of Electrical Sciences > Electronic Systems Engineering (Formerly Centre for Electronic Design & Technology)
Division of Physical & Mathematical Sciences > Mathematics
Depositing User: Id for Latest eprints
Date Deposited: 20 Jun 2019 17:01
Last Modified: 25 Jun 2019 04:52
URI: http://eprints.iisc.ac.in/id/eprint/62967

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