Gregorian song (5)
I believe the answer is:
chant
(Other definitions for chant that I've seen before include "Incantatory song" , "A monotonous song or rhythmic call" , "Intone (psalm)" , "Repeated rhythmic song" , "Repeated rhythmic phrase" .)
I believe the answer is:
chant
(Other definitions for chant that I've seen before include "Incantatory song" , "A monotonous song or rhythmic call" , "Intone (psalm)" , "Repeated rhythmic song" , "Repeated rhythmic phrase" .)