Using the context clues, the meaning of the underlined word is shrill.
What is a Context Clue?
This refers to the use of hints to show that an action is about to take place which can be used in foreshadowing.
With this in mind, we can see that from the given sentence, there is the narration about how the trumpet made an unpleasant sound which was jarring and this shows that the sound was shrill.
Read more about context clues here:
https://brainly.com/question/8712844
