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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
AudioDatabase
AudioFeatures
EditorialInformation
SemanticInformation
MusicScores
Application Programming Interface (API)
Client
Web Server
Linked Data
Linking Open Data
Presentation Layer
Web/Mobile Browser
Data Sources
Processing Layer
Data ProcessingAudio mid- and
high-level descriptorsSemantic 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
OWLListisA
hasRendition
so:Segment tl:IntervalisA
Shadjama
Rishaba
GandharaMadhyamaPanchama
Dhaivata
Nishada
SuddhaGandhara
SadharanaGandhara
AntaraGandhara
ChatussrutiRishaba
.....
SuddhaRishaba
isA
isA
isA
isAisA
isA
isA
isA
isA
isAisA
precedes
disjointWith
disjointWith
disjointWithisA
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 Dīkṣitar3. Which rāgas are similar to Bahudāri?