When Fr. Murphy is introduced in the opening scene, the school's front doors are engulfed in sun. Just a minute later when the old man asks Father Murphy "What do you say?" the doors are shadowed up to the top of the door, and a second later when Mr. Rodman exits the school doors, the front of the school is mostly shadowed.
After Mr. Rodman wins money off #8, the wide shot shows him reaching out with his right hand to pull the money back. The shot then switches to a closeup where he pulls the money over to the red diamond, but now it is his left hand.
In the beginning, Jenny approaches the back of the wagon with a frown, listening to the piano. Once she is directly behind the wagon and touches the piano, she smiles. Moses and Fr Murphy are behind her, so they can't see her face, but they're saying that this is the first time they have seen her smile.
When Murphy and Moses are counting money to try to purchase the piano, Moses mentions that he thinks Mae has $6. But at the beginning of the episode, Murphy welcomes Moses back. If he's been away, how would he know how much money Mae might have?