It's time for a musical adventure! Barney?, BJ? and Baby Bop? have a new dino friend, Riff, who knows how to find music everywhere! When a little girl named Melanie dreams of playing her violin in a talent show, Barney and his friends help her realize her dreams with the help of a new dino friend, Riff, who knows how to find music everywhere! Riff shows the friends all about music and sounds as they sing favorite songs, play games and ride amazing rides! They also discover that some dreams are even bigger than they imagined. So head to the fair, join the fun and let's make music together!