The answer to this is motives
When Harold Hill (Robert Preston), a traveling con man, arrives in River City, he convinces the locals to start a band by purchasing the uniforms and instruments from him. His intention is to flee as soon as he receives the money. Librarian Marian Paroo (Shirley Jones) suspects Harold is a fraud, but holds her tongue since her moody brother, Winthrop (Ronny Howard), is excited about the band. As Harold begins to develop feelings for Marian, he faces a difficult decision about skipping town.
Speed of weaving does not affect the quality or pattern of cloth
cave graffiti is the first art ever made in the world
I'm too lazy to write this, but I have an idea, classical music isn't boring. There are some songs with cannons in them. Hope that helps :)