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The chord progression of a song is an important high-level feature which enables indexing as well as deeper analysis of musical recordings. Different approaches to chord recognition have been suggested in the past. Though their performance increased, still significant error rates seem to be unavoidable. One way to improve accuracy is to try to correct possible misclassifications. In this paper, we propose a postprocessing method based on considerations of musical harmony, assuming that the pooldoi:10.1109/cbmi.2008.4564924 dblp:conf/cbmi/ReinhardSN08 fatcat:tgdvgjmhjbcb3bkipfpx4xv2gm