Xin Zhang Zbigniew W. Ras Agnieszka Dardzinska Discriminant Feature Analysis for Music Timbre Recognition and Automatic Indexing. 104-115 2007 MCD http://dx.doi.org/10.1007/978-3-540-68416-9_9 conf/ecml/2007mcd db/conf/ecml/mcd2007.html#ZhangRD07