A reference book about History of Music and Hymnography you can download from here.
domesticus Lupus non curat numerum ovium Feb 23, 2009 #1 A reference book about History of Music and Hymnography you can download from here.
Γεώργιος Σάββας Μέλος Mar 15, 2015 #2 http://www.doaks.org/research/byzantine/fellows/2010-11/reports/lingas