MIREX 2011 Symbolic Melodic Similarity: Sequence Alignment with Geometric Representations

J. Urbano, J. Lloréns, J. Morato and S. Sánchez-Cuadrado
Music Information Retrieval Evaluation eXchange, 2011.

Best results in the MIREX 2011 Symbolic Melodic Similarity task.


This short paper describes our three submissions to the MIREX 2011 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 MIREX 2010, our systems ranked first for all effectiveness measures used.