A press release from the Abbey illuminates the picture somewhat:
“The combined choirs will sing music from the Roman tradition including movements from Palestrina Missa Papae Marcelli and the motet Tu es Petrus, and the Abbey Choir will also sing music from the English choral tradition, including music by Byrd Ave verum corpus and Laudibus in sanctis, Tallis Loquebantur variis linguis, and Purcell I was glad.”
Read together with the said booklet, the parts of the Ordinary that will be sung from the Papae Marcelli Mass are the Gloria and the Credo, with the Kyrie, Sanctus and Agnus Dei from Mass VIII (De Angelis) (not Mass IV, which the Vatican guidelines on chant stipulate for use on Feasts of the Apostles).
Ave Verum Corpus is listed as a Communion Motet, though Byrd is not mentioned. Tu es Petrus is listed as both an introductory and a recessional piece, though Palestrina is not mentioned in connexion with either. The booklet makes no reference to some of those other pieces mentioned in Abbey's statement.
Some general thoughts. The Abbey choir has made a recording of the Papae Marcelli Mass, so this is quite within their existing repertoire, and is regularly sung by the Cappella Sistina. It seems that the Abbey Choir will sing the Byrd, Tallis and Purcell without the assistance of the Cappella Sistina, one reason being that those composers' works are not part the latter choir's usual repertoire. I do so hope that it all goes well - any collaboration that furthers the cause of good quality sacred music in praise of the Almighty is to be welcomed. Or as Colin Mawby recently put in in Oremus, the Westminster Cathedral periodical, liturgical music is in the first place an "act of prayer" - to see and hear these two choirs singing the Church's liturgy together will be a very magnificent thing.
The Cappella Nicolai of Amsterdam sings Byrd's Ave Verum Corpus in a wonderful Anglo-Dutch style
The Abbey Choir has already given a concert this week in Rome, on Tuesday in the Basilica of Santa Maria Maggiore:
|Archbishop Coleridge listed in the Order of Service for the Papal Mass at which he will receive his Pallium|
I notice that the Cappella Sistina's website has a link to my blog regarding the concert given by the Sistine Choir at Westminster Cathedral earlier this year! Greetings and all the best for your collaboration with the Abbey Choir this Friday!