
1) Medieval music
Found on
https://www.crosswordclues.com/clue/geisslerlieder

In medieval music, the Geisslerlieder, or Flagellant songs, were the songs of the wandering bands of flagellants, who overspread Europe during two periods of mass hysteria: the first during the middle of the 13th century, and the second during the Black Death in 1349. The music was simple, sung in the vernacular, often call-and-response, and close...
Found on
http://en.wikipedia.org/wiki/Geisslerlieder
No exact match found.