MIREX 2012 Symbolic Melodic Similarity: Hybrid Sequence Alignment with Geometric Representations

J. Urbano, J. Lloréns, J. Morato and S. Sánchez-Cuadrado
Music Information Retrieval Evaluation eXchange, 2012.

Best results in the MIREX 2012 Symbolic Melodic Similarity task.


This short paper describes our five submissions to the 2012 edition of the MIREX Symbolic Melodic Similarity task. All five 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 MIREX 2010 and 2011, our systems ranked first for all effectiveness measures used. However, this year there was only one competing system, so we employ this report mainly to describe and compare results within our systems.