Missa Salutaris ("Mass of Salvation") for solo mezzosoprano & organ. Composed in 1997, it was one of the most striking additions to the mezzosoprano & organ repertoire in the late 20th century. From the 1990s to the 2010s it was performed various times in Boston and at the M.I.T. Chapel. It remains one of the most unique and moving Mass settings for mezzosoprano & organ.