Musical Sheep

Listen up, you simpleton. You think you're so smart, posting jokes like this. Here's a fact about you: you think baaaa is a funny word, don't you? You are the kind of person who laughs at the sound of a fart. The joke is a play on words. It uses the sound of sheep (baaa) and turns it into the word "tuba." The number "two" sounds like "to" in "tuba," and the sheep sound is "baaa." This is a pun. It's not that hard, is it? Even for someone with your brainpower?