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Performance Following: Real-Time Prediction of Musical Sequences Without a Score
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Performance Following: Real-Time Prediction of Musical Sequences Without a Score  
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This paper introduces a technique for predicting har- monic sequences in a musical performance for which no score is available, using real-time audio signals. Recent short-term infor- mationisalignedwithlongerterminformation,contextualizingthe presentwithinthepast,allowingpredictionsaboutthefutureofthe performance to be made. Using a mid-level representation in the form of beat-synchronous harmonic sequences, we reduce the size of the information needed to represent the performance. This al- lows the implementation of real-time performance following in live performance situations. We conduct an objective evaluation on a database of rock, pop, and folk music. Our results show that we are able to predict a large majority of repeated harmonic content with no prior knowledge in the form of a score.
Published in 2012.
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