Learning to analyse tonal music
نویسندگان
چکیده
This work is an effort towards the develop-ment of a system for the automation of tra-ditional tonal analysis of polyphonic scores insymbolic format. The system detects chordswith their tonal functions, and key changes.All the possible tonal and key analyses arerepresented as a weighted directed acyclicgraph. The best analysis is the path thatmaximizes, through a dynamic programmingalgorithm, the sum of weights in the graph.The selection of the weights according to theimportance of each possible harmonic pro-gression is a key issue. A genetic algorithm isproposed to learn them from a training cor-pus of a given music style. The proof of con-cept of this approach has been tested on Bachchorales.
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