Premise: "A blond man with a beard at a concert holding a violin."
Hypothesis: "A man is getting ready to perform on his violin."
Do we know that the hypothesis entailed by the premise? Now, let's be accurate as possible. Some thinking first:

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
user
The man at the concert holding a violin doesn't mean he is there to perform on his violin. So, the answer is it is not possible to tell.