Two ritual antiphons, each on its own plainchant cantus firmus. The first is sung with the Nunc dimittis in Passiontide; the second is sung at the aspersion before Mass in Eastertide. John Mason was probably the musician of that name who sang in Cardinal Wolseys household chapel. Now in a revised second edition including changes to the editorially composed voice(s).  For five voices: TTBarBarB and SATTB. vi + 16 pages.