The rite used in the old archiepiscopal province of Milan, and one of the few non-Roman rites which survive in the RC Church. It takes its name from St Ambrose, Bp. of Milan, but there is no evidence of any connection with him. It differs from the Roman rite in a number of minor points, e.g. the Offertory comes before and not after the Creed. The Missal was revised in 1976 and the Breviary in 1983.
The Ambrosian chant is characterized by its tendency to greater melodic elaboration and modal freedom when compared with the Gregorian.