The term that best completes the statement above would be "aria." It is a part of the opera wherein it expresses the music of the ensemble in such a way that it dictates the tone of the opera. It is usually accompanied by an instrument and it is not necessarily song by the opera singer.
This is a good site for you:
https://www.britannica.com/art/Oceanic-art
Hello!
So technically the only necessary materials for realistic drawings is paper (preferably sketch paper), charcoal pencils, and erasers.
But if you want to be a little bit more specific, you should get some Q-Tips because it makes the charcoal blend better.
If you want some more detail into the types of paper, erasers, and pencils just use this link! Its great for quality art feedback.
https://thevirtualinstructor.com/blog/10-essential-drawing-materials-and-tools-for-beginners
Let me know if you need anymore help!
Ary~~