
1) Early music
Found on
https://www.crosswordclues.com/clue/rondellus

In music rondellus is the formalized interchange of parts or voices according to a scheme, often used in English conducti and frequently in English motets of the late thirteenth and early fourteenth centuries, but never used for an entire piece (Caldwell 1992, p. 47). For example: where the italicized letters represent music with text and the othe...
Found on
http://en.wikipedia.org/wiki/Rondellus
[ensemble] Rondellus is an Estonian musical ensemble. After recording several albums of early music on period instruments they recorded Sabbatum: Medieval Tribute to Black Sabbath in the same style having translated the vocals to Latin. (`War Pigs` = `Verres Militares`) Instrumentation: vocals, hurdy-gurdy, organistrum, lute, percussion, fi...
Found on
http://en.wikipedia.org/wiki/Rondellus_(ensemble)
No exact match found.