The phrase works online as a piece of absurdist humour, where a blunt statement is funnier precisely because it is delivered without any justification. Short spoken clips like this travel well on soundboards and in short-form videos because they can be dropped into almost any loud or musical context without needing the original conversation around them. Its appeal comes from the clash between cannons and instruments, two things that share volume, timing and spectacle, but belong to completely different worlds. That contrast keeps it reusable for music jokes, reaction edits and over-the-top sound gags.