Answer: they were marks at particular heights over the words of the song
Explanation:
They told the singer what pitch to sing.
Answer: division
Explanation:
A fallacy of division occurs when a logical reason takes place that something true for the whole must also be true of all or some of its parts.
That is , something that applies for the whole applies to the part also .
In the question above
The New York Philharmonic plays classical music in a lyrical and harmonious manner=
Logical reasoning for the whole .In the part b ,we can see it is now being applied to the part Therefore , its percussionists play classical music in a lyrical and harmonious manner.