The idiom "to blow one's own trumpet" means:

Explanation

The idiom 'to blow one's own trumpet' means to boast or brag about one's own achievements or abilities. It derives from the idea of a person announcing their accomplishments loudly and proudly, similar to how a trumpet's sound can carry far and wide. Option B is correct as it captures this essence of self-praise. Option A is incorrect because it focuses on the literal aspect of music rather than boasting. Option C is incorrect because getting angry does not relate to self-promotion. Option D, while suggesting a way to draw attention, also does not encapsulate the idea of self-praise that the idiom conveys.