Typically, above-the-line refers to producers, directors, writers, cast (including name actors/movie stars, etc.), and stunt cast/personnel. ... “Below the line” then refers to everything and everybody and every expense that isn't considered Above the Line. More simply, imagine a line drawn in on a budget page.
Most likely harmony, the degree to which a person appreciates the harmony depends on various things such as: their level of musical training, their ear, and again just their opinion.
