Question 2 of 10 What was the sign of swiftness on a horse in Morocco?
a wheat ear on the chest
B
a white spot under the chin
a white spot on his hind heel
a white star on the forehead
In the dory king of the wind.

Beats: Pulse.

Explanation:

As per the question, the word pair 'beats, pulse' best completes the given sentence aptly. Then, the sentence reads as:

'Each measure contains a combination of strong and weak beats, which represent the underlying pulse of the music.'

'Beats' represent 'the rhythm that is signaled by a musician' while 'pulse' implies 'beat of music'. Therefore, the statement implies 'a combination of strong and weak rhythmic signals(by the conductor or musician) together represent the intrinsic 'beats'(pulse) of the music'. Therefore, the word pair of 'beats, pulse' is the answer.