Answer: d. Sounds
Explanation:
According to Bruno Netti on Ethnomusicology, Music is diverse. It always expresses a subtext determined by culture, class, gender and personality and by a society's idea of music. Evidenced by the different genres of music we have.
Alan Merriam's three part model on music suggests that music is a phenomenon that consists of three sides; sound, behaviour and ideas.
So therefore for music to be understood, it should be studied as a group of sounds, as behaviour that leads to these sounds, and as a group of ideas or concepts that govern the sound and the behaviour.
I don’t think that we can follow on here can we?
A cantata is a free structure and the oratorio is structured in several acts
R O. Y. G. B. I. V.
e. r. e. r. l. n. i.
d. a. l. e. u. d. o. n. l. e. e. i. l.
g. o. n. g. e.
e. w. o. t.
If you don't get what I'm saying, no one will!