Hear the service at this link. Four weeks left to listen at time of writing.
The music list:
Introit: Sicut cervus (Palestrina)
Hymn: Caeli Deus sanctissime (Plainsong)
Psalms: Ps 125, 126 (Plainsong)
Canticle: Colossians 1:12-20 (Plainsong)
Reading: Ephesians 3:20-21
Magnificat sexti toni (Victoria)
Homily: Fr Alexander Master
Motet: Sitivit anima mea (Palestrina)
Antiphon: Ave Virgo sanctissima (Guerrero)
Organ Voluntary: Prelude in B minor, BWV 544 (Bach)
The choir sang choral evensong with the Westminster Abbey Choir at the Abbey last Friday - see here and here. Below the choirs are pictured rehearsing.