Algorithms on strings, trees, and sequences: computer science and computational biology
Algorithms on strings, trees, and sequences: computer science and computational biology
Local transpositions in alignment of polyphonic musical sequences
SPIRE'07 Proceedings of the 14th international conference on String processing and information retrieval
Visual expression for organizing and accessing music collections in MusicWiz
ECDL'10 Proceedings of the 14th European conference on Research and advanced technology for digital libraries
Comparing approaches to the similarity of musical chord sequences
CMMR'10 Proceedings of the 7th international conference on Exploring music contents
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Music retrieval systems for Western tonal music digital ibraries have to consider rhythmic, timbral, melodic and harmonic information. Most existing retrieval systems only take into account melodies. Melody comparison may induce errors since two musical pieces can be very similar whereas their melodies may differ in a significant way. In this paper, we propose to investigate and experiment a retrieval system based on the comparison of chord progressions. The definition of chords may be ambiguous but their properties can be precisely described and represented. We detail the adaptations of alignment algorithms, successfully applied for the estimation of symbolic melodic similarity, for chord progression retrieval. Several experiments, performed on symbolic databases, show that the system described is robust to variations and outperforms a recent chord retrieval system.