Yojojo and Nok Tok find a hollowed-out trumpet-like branch and blow through it to make a loud noise. They're so delighted with the sound that they blow even harder! Every time they blow, they are overwhelmed with joy at the sound that it makes. But there's a problem: Lau Lau is trying to dance with her narabug, and the loud noise keeps scaring it away. When the children arrive, they show Nok Tok and Yojojo a way of playing the trumpet more softly. Eventually they manage to produce such a gentle tune that the narabugs actually like the sound and come back to dance with Lau Lau.