Automatic structure analysis of Dhrupad Music
Automatic structure analysis of Dhrupad Music
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Dhrupad is one of the oldest forms of North Indian classical vocal music. A typical Dhrupad concert comprises a solo vocalist or vocalist duo as the lead and a pakhawaj player for the percussion accompaniment, with a tanpura in the background for the harmonic drone.Â
The performance lasts for over an hour and consists of an elaborate, unaccompanied raga alap followed by a composed piece, the bandish, performed along with the percussion instrument.
The figures below show the overall structure of a Dhrupad vocal concert along with a more detailed view of each portion. The initial 'alap' generally comprises 3 broad sections based primarily on the rate of rhythmic syllable utterance. The 'bandish' consists of episodes of improvisation interspersed with the singing of the composed piece. It also consists of sections of free improvisation by the accompanying pakhawaj.
Structure of a typical Dhrupad concert
Structure in the bandish portion (vocalist's perspective)
Automatic structure analysis of this form of music thus involves identifying the boundaries between sections in each portion and visualising the changing rhythmic density (tempo). See the related publications below to find out more.
Further reading:
Further reading:
Rohit M. A., Vinutha T. P., and Preeti Rao, " Structural Segmentation of Dhrupad Vocal Bandish Audio Based on Tempo", Proceedings of ISMIR, October 2020 (pdf) (webpage)
Rohit M. A. and Preeti Rao, " Structure and Automatic Segmentation of Dhrupad Vocal Bandish Audio", Unpublished technical report, arXiv:2008.00756 [eess.AS], 2020 (pdf)
P. Rao, T. P. Vinutha and M. A. Rohit, "Structural Segmentation of Alap in Dhrupad Vocal Concerts ", Transactions of International Society for Music Information Retrieval (TISMIR), September 2020. (pdf)
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