In this early effort, rather than just watching the threesome run around and bash each other, there is genuine plot and character development. Instead of three barely distinguishable buffoons, we have three distinct characters interacting in an actual story line. They have a plausible initial meeting at a restaurant where Curly works as a waiter, Moe is a customer who discovers Curly's hidden boxing talent, and Larry the down-and-out musician who inadvertently plays the tune that sets Curly off. The plot device of having some stimulus turn Curly into an invincible destruction machine is reused in later efforts, most notably the mouse in the later "Moe, Larry, the cheese" routine, but they never really improve upon the use of "Pop Goes the Weasel" here. Larry is always at his best when he is able to play the violin in a way that fits plausibly into the plot, and Moe is actually sympathetic as the tough guy who takes the distraught Curly under his wing and makes him a success. The story is a real story, not just a loose string of slapstick antics; we actually feel tension and anticipation at the end as we watch Curly being beaten up by his opponent and wonder if and how Larry will find another way to play "Pop Goes the Weasel." Grade: A+.