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Title: Music content analysis: Key, chord and rhythm tracking in acoustic signals
Keywords: music content analysis, beat, measure, rhythm, key, chord
Issue Date: 1-Nov-2004
Source: ARUN KOTA SHENOY (2004-11-01). Music content analysis: Key, chord and rhythm tracking in acoustic signals. ScholarBank@NUS Repository.
Abstract: We propose a music content analysis framework to determine the musical key, chords and the hierarchical rhythm structure in musical audio signals. Our rule-based approach uses a combination of top down and bottom up approaches - combining the strength of higher level musical knowledge and low level audio features. To the best of our knowledge, this is the first attempt to extract all of these three important expressive dimensions of music from real world musical recordings, carefully selected for their variety in artist and time spans. Experimental results illustrate accurate key and rhythm structure determination for 28 out of 30 songs tested with an average chord recognition accuracy of around 80%. We do a detailed evaluation of the test results and highlight the limitations of the system. We also demonstrate the applicability of this approach to other aspects of music content analysis and outline steps for further development.
Appears in Collections:Master's Theses (Open)

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