Indian Classical Music�Raga Development and movement

All rights reserved to Ron 'Shpatz' Cohen for personal use only

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Pandit Hariprasad Chaurasia – Bansuri (Indian bamboo flute) master

Research outline and objectives

• Case study approach aiming to trace melodic movement and raga development through MIR tools.
• Quantitative research in a qualitative discipline like the arts.
• Piece will consist of the Alap portion of paradigmatic rendition of Raga Yaman by Hariprasad Chaurasia. The piece is 17:34 in length (assuming rights for use will be granted by artist as he is my teacher).
• Only Flute and drone are present in recording
• As of now started working on Sonic Visualizer software, learning different possibilities.
• Interested in creating graphic visualizations with MIR tools of raga development that go beyond transcriptions.
• Aiming to validate MIR abilities as compared to manual analysis.

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All rights reserved to Ron 'Shpatz' Cohen for personal use only

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13/04/2022 8:54

Link to the musical piece

Workflow of computational process

• Wave to sonic visualizer for segmentation and extraction of main melodic line with melodia plugin – export in .txt/.csv
• Create segmentation rule and implementation for manual/automated segmentation.
• Create rule and implementation for ignoring of short/ornamented notes.
• heuristic algorithm to create sequencing of notes – export in .txt/,csv back to sonic visualizer
• Present data set with queries regarding sequencing of notes, frequency of note appearance, start and end notes in phrases.
• Create table and graphic presentation of data.

All rights reserved to Ron 'Shpatz' Cohen for personal use only

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13/04/2022 8:54

Needed applications from hackathon �

• Determine possibility of using Sonic Visualizer for the entire project
• Extracting of melodic line separating it from drone – almost done needs tweaking.
• Implementation of automated/manual segmentation into phrases.
• Implementation of rule for ignoring of short/ornamented notes.
• Implementation of sequencing algorithm – where can it be obtained from?
• How to address the data set with the musical queries regarding: note sequence behavior, starting and end notes of phrases, frequented notes
• Presentation of queries in various table and graphic formats.

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All rights reserved to Ron 'Shpatz' Cohen for personal use only

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13/04/2022 8:54

Example of manual analysis: Wav of musical piece with gross manual segmentation, prevailing notes and contour of melodic line

All rights reserved to Ron 'Shpatz' Cohen for personal use only

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