Based on “Ritorni al nostro cor la bella pace” from Salustia by Giovanni Battista Pergolesi (1710-1736), “O Sing This Festive Day!” is a majestic opening number for school programs or churchservices. Incorporating optional hand drum and trumpet (parts are included in the choral), it is also a good supplement for music history studies. “O Sing This Festive Day!” gives singers an excellent taste of Baroquemusic without being difficult to learn.