Ontological description of Indian art music for knowledge ... · PDF file Suddha Gandhara...

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  • Ontological description of Indian art music for knowledge-driven exploration of audio music collections

    Gopala Krishna Koduri, Xavier Serra {gopala.koduri, xavier.serra}@upf.edu

    Audio Database

    Audio Features

    Editorial Information

    Semantic Information

    Music Scores

    Application Programming Interface (API)

    Client

    Web Server

    Linked Data

    Linking Open Data

    Presentation Layer

    Web/Mobile Browser

    Data Sources

    Processing Layer

    Data Processing Audio mid- and

    high-level descriptors Semantic descriptors

    Information Processing

    Ontology Definition Data Linking Similarity measures

    Analysis of melodic and rhythmic aspects of music taking advantage of the domain knowledge obtained from musicological texts and from experts: http://compmusic.upf.edu/node/4

    Knowledge-based similarity measures to navigate and explore the music collections using musically aware connections between entities [1].

    System overview & goals

    Ontologies for concepts and relationships coming from music theory [2].

    Audio music collections with metadata and contextual information as complete as possible, linked to other sources: http://musicbrainz.org/user/compmusic/collections

    Requirements

    Ontologies for Indian art music

    Raaga

    Progression

    Svara

    Sequence

    Gamaka

    hasSequence

    hasProgression

    hasSvara

    hasGamaka

    hasSvaraisA

    isA

    OWLList isA

    hasRendition

    so:Segment tl:IntervalisA

    Shadjama

    Rishaba

    GandharaMadhyama Panchama

    Dhaivata

    Nishada

    Suddha Gandhara

    Sadharana Gandhara

    Antara Gandhara

    Chatussruti Rishaba

    .....

    Suddha Rishaba

    isA

    isA

    isA

    isA isA

    isA

    isA

    isA

    isA

    isAisA

    precedes

    disjointWith

    disjointWith

    disjointWith isA

    Partial rāga ontology [2]

    Three important aspects which need intologies for a complete description of Indian art music: Rāga (melodic framework), Tāla (rhythmic framework) and Forms (compositional and improvisatory categories).

    Challenges relevant to most, if not all music traditions, such as melodic sequences, are modeled with appropriate semantics.

    Used in conjuction with audio data analyses with mutual benefit.

    Used in linking multiple sources of information.

    Used to directly compute the relatedness/similarity measures between musical entities.

    [1] Porter, A., Sordo, M., Serra, X.: Dunya: a system to browse audio music collections using cultural context. In: ISMIR. (2013) In press [2] Koduri, G. K., Serra, X.: A knowledge-based approach to computational analysis of melody in Indian art music, In: SMAM-ISWC. (2013) In press

    Example queries

    1. Which svaras are the most distinguishing ones between Tōḍi and Śankarābharaṇaṁ?. 2. List out the differences between phraseology for Kaḷyāṇi rāga in compositions of Tyāgarāja and Dīkṣitar 3. Which rāgas are similar to Bahudāri?