One theme, many points of recognition! Early Music people recognize this as the Rondeau from the incidental music Purcell wrote for the play Abdelazer. Modern orchestral players know it as the theme from Benjamin Britten's "A Young Person's Guide to the Orchestra". (Theater people know Abdelazer as one of the works of Aphra Behn, one of the first English women to earn a living by her writing, but they may or may not know the suite by Purcell...)