I hate to be that person, and it's really besides the point here, but I really hate it when people mess up the a/an rule. The whole point of it is to make a sentence flow when being read and spoken, so reading "a orchestra conductor" just ends up being jarring and stilted. Also I typically do not care how poorly written something is. In my opinion the only thing that really matters with language is that the message that was intended is conveyed and understood accurately. That said, if you're making shitty propaganda on youtube I will absolutely give you shit for fucking up your grammar.