I always have two musical interludes. After the first story, we pass out mini-bubbles and listen to music matching the mood or theme of the stories. (I use a variety of music-- Folk, Celtic, Classical, Jazz, Rock. But I hardly ever use "toddler" music!) This goes for about 5 minutes. Kids blow bubbles, spill bubbles, chase bubbles, and even dance.  After the second story, we pass out shakers and move along with the song "Shake Your Sillies Out".