This Tone 4 (1) Gloria Patri is taken from Palestrina's Tone 4 Magnificat for SSAA voices first noted in Codex 59 from the Lateran Basilica (2nd half of the 16th c.) and then found in the Urtext Edition Breitkopf & Hartel, 1885. Thanks to Joachim Kelecom (www.cpdl.org) for his posting.
This Gloria Patri is designed to pair with Tone 4 or Tone 1 Communio's or Office Magnifcats where plainchant is used. The Gloria Patri is traditionally sung before the final repetition of Antiphon.
Gloria Patri Tone 4 or 1 | Palestrina | TTBB | 3'
Glória Patri, et Fílio,
et Spirítui Sancto.
Sicut erat in princípio, et nunc, et semper
et in saécula saeculórum, Amen.
Translation
Glory be to the Father, and the Son,
and to the Holy Ghost.
As it was in beginning,
is now and ever shall be,
world without end.