Rogers has a picture of the stringed instrument family. He doesn't get to it before Mr. McFeely brings a film (video, really) of people making bass violins. Rogers shows the picture, detailing a bass violin, a cello, a viola, and a violin. He and Mr. McFeely watch the film (video, really). After the screening, Mr. McFeely and Rogers discuss Yo-Yo Ma, who is rehearsing today at Negri's Music Shop.
In the NOM, Lady Aberlin is having trouble learning to play the bass violin as King Friday desires. Old Goat appears, sharing with Lady Aberlin an inability to play the bass violin. They tell Chuck Aber and then Lady Elaine. Lady Elaine plays her accordion disguised as a bass violin. Inspired, Lady Aberlin dances with her bass violin.
Back at the television house, Rogers says it's important to practice what one feels good at. He goes to Negri's Music Shop to meet Yo-Yo Ma. They discuss the Bach music Ma likes to plays on his cello and the way Nicholas appreciates the music. Ma discusses his favorite pieces, such as The Swan. He also says his cello is very light, because the wood is thin. Rogers looks into the cello to read the signature: Stradivarius. Ma plays two dance pieces from Bach's repertoire. Joe Negri and Ma play a duet of Tree, Tree, Tree.
Songs: Won't You Be My Neighbor?, Tree, Tree, Tree, Good Feeling.