Lah-Lah gets a phone call on her balcony asking if the band can perform a concert tonight because another band had to pull out. Lah-Lah goes next door to the band's house to check if they think they can do it. Together they decide they can and must decide what to perform. Lah-Lah and Buzz can't decide whether to sing something high or something low. When the bus arrives to take them to the concert they still haven't decided but they have to go right away. On the bus they meet James, a trombonist who can play both high and low notes. The band jam with James on the bus
