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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

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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.

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

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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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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.

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

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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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