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This missa brevis is thought to have been composed for ordinary liturgical use in the Salzburg Cathedral, under the directive of Archbishop Colloredo. Mozart tried to satisfy Colloredo's demands for brevity and concision in the composition of this mass – none of the movements have an orchestral prelude, the orchestra itself is highly reduced, there is very little fugal writing, and much of the setting is homophonic. In 1793, the Lotter house published the mass posthumously; it was the first of Mozart's works to appear in print.
The mass consists of six movements. Performances require approximately 15 minutes.