Hieronymus Bosch, the Dutch painter who famously depicted music as nightmarish, lewd, or a vain pursuit in his Garden of Earthly Delights and Ship of Fools, was a member of Brabant’s singing confraternity at the Church of St. John the Evangelist. Missa Cum jocunditate, by Pierre de la Rue, might well have been in the confraternity’s repertory and is the program’s main work.

3 p.m. pre-concert lecture and Q and A by Professor M. Jennifer Bloxam in the auditorium

“[Cappella Pratensis] sings with an organic appreciation of line and text in a sinuously smooth legato that enfolds the ear in every phrase. Serious scholarship and a commitment to performing from a central music stand … combined creatively with mellifluous singing.” —Classical Music