"A musical sketch in color" drawn to the tune of Mendelssohn's Spring Song. A train-turned-caterpillar-turned-butterfly livens up the forest with its violin performance. Cy Young (signed Sy Young on this short) made this during or shortly after finishing school in New York; it's unclear whether it was for a specific studio or how it was funded, but it sold his talent to Disney, where he was hired shortly after that.