Mass of the Mediatrix

Mass of the Mediatrix is a practical, liturgical setting of the revised English translation of the Mass, approved for use beginning in Advent of 2011. The setting may be performed with a range of resources, from simple Cantor and Keyboard to a full choir with optional added instruments. The keyboard part is written with a preference for performance on Organ, but will work well also with piano. The choral parts may be performed by a full mixed choir (SATB), or any combination of choral parts may be combined with the Cantor part to provide vocal harmonies when a four-part choir is not available. In addition to scores and instrumental parts, a PDF Pew Card is also provided, which may be copied on two sides of 8.5 x 14" card stock and then folded.

I am happy to consider producing additional resources or versions of the work to assist pastoral musicians in their specific situations. Please contact me if you have needs that are not addressed by the range of files provided here.


Patrick M. O'Shea, KHS
30 Aug. MMXI

Conditions of Use

Unless "sample" is indicated, these are complete scores provided as Adobe PDF files. Reproduction for individual study and use is welcomed. Reproduction of scores in quantity for school, church and non-profit organizations is authorized. A voluntary contribution of $1.00 per score may be made, payable by online donation (see the bottom of this page) or by check or money order to the composer. Copies of programs of public performances are requested and much appreciated.

Adobe Acrobat Reader is required to view these files.


Mass of the Mediatrix - Full Score (8.5x11" landscape format)

Mass of the Mediatrix - Choral/Cantor Score (8.5x11")

Mass of the Mediatrix - Instrumental Parts (two optional instruments in C)

Mass of the Mediatrix - Pew Card


Audio Files

(MP3 files - computer-generated sample performances)



Gospel Acclamation


Mystery of Faith

Great Amen

Agnus Dei