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.