The "Missa romana" is a mass setting in Latin. With a duration of c. 10 minutes, and a moderate level of difficulty, it is intended for performance in Catholic services. It combines jazzy chords and Latin American rhythms with quotations from the Gregorian "Missa de Angelis", which is currently used in many parishes and is popular to sing. The aim is to portray the Latin American dance rhythms authentically and with infectious energy for the listening congregation. This can certainly be achieved through a performance with at leaset a percussion group which is able to exploit the variety of Latin American percussion instruments. The band could also include a double bass and, as harmony instrument, guitar and/or keyboard. The dance rhythms given serve as a guide to rhythm and tempo, and the chordal accompaniment should be improvised using the chord symbols. As performance with band won’t always be possible, the "Missa romana" is written so that it can also be performed a cappella or with organ accompaniment.