Richard A. Medina Papers on DiSC'04 Discovery of Retrograde and Inverted Themes for Indexing Musical Scores Publications Note: Links lead to the DBLP on the Web. Richard A. Medina Xiaona Ren , Lloyd A. Smith , Richard A. Medina: Discovery of retrograde and inverted themes for indexing musical scores. JCDL 2004 : 252-253 Richard A. Medina, Lloyd A. Smith , Deborah R. Wagner : Content-Based Indexing of Musical Scores. JCDL 2003 : 18-26 1 [ 2 ] 2 [ 1 ] [ 2 ] 3 [ 1 ] ©2005 Association for Computing Machinery