Media type: E-Article Title: Communication Contributor: Atkinson, Charles M. Published: Cambridge University Press (CUP), 2011 Published in: Plainsong and Medieval Music, 20 (2011) 1, Seite 67-69 Language: English DOI: 10.1017/s0961137110000203 ISSN: 0961-1371; 1474-0087 Keywords: Music Origination: Footnote: