MIREX 2013 Symbolic melodic similarity: a geometric model supported with hybrid sequence alignment

Abstract

This short paper describes our three submissions to the 2013 edition of the MIREX Symbolic Melodic Similarity task. All three submissions rely on a geometric model that represents melodies as spline curves in the pitch-time plane. The similarity between two melodies is then computed with a sequence alignment algorithm between sequences of spline spans: the more similar the shape of the curves, the more similar the melodies they represent. As in the previous MIREX 2010, 2011 and 2012 editions, our systems ranked first for all effectiveness measures.