Given the task definition and input, reply with output. In this task, you are given a question. You have to answer the question based on your information.

Missa Sancti Nicolai, Mass No. 6 in G major, Hob. XII/6, also known as the "Nicolaimesse", was made by Joseph Haydn, composed around 1772 and revised in 1802, is which form of sacred musical composition, is a choral composition that sets the invariable portions of the Eucharistic liturgy, to music?

Mass