the question itself is literally grammatically flawed

hellian

nonsense

In regards to the contrapositive, is it not the case that if there is not a good show that there still may be inspired musical performances? I understand that the presence of insp musical performances guarantees a good show, but how does the reverse make sense? Can't the inspired musical performance exist without a good show?

How and why are opposition leaders not the subject of the sentence? Attempts appears to be a verb