The adventures are fun and well written and the dialog is witty, but the thing that really sets The Backyardigans apart is the music and the dancing. Each episode has a musical theme for which the staff composers (notably Evan Lurie of the Lounge Lizards) create original music and songs of often surprisingly high quality.
Imagination Movers is the name of a children's music group from New Orleans, who have been named to "up-and-coming" lists. The group has issued successful albums, as well as a DVD. From the band's own website: