Trinity at the Cathedral of Our Lady of Walsingham may be viewed at olwcatholic.org. One may hear the Athanasian creed in procession, some Palmer-Burgess propers and some Anglican chant, and the Willan mass. The choir during these times is reduced to a quartet and may sound somewhat weak.

What was Trinity like in some of our other Forum churches?

Actually, this is one of my favourite feasts, and I have never understood why it hasn't had a place in the hearts and minds of the Faithful and the Clergy as Christmas, Easter, Ascension, and Pentecost - and Marian days. It should be an HDO. It is, after all, about the very God who brought all these things, indeed, all of us and all of creation, into being; who is, after all, our very real heavenly Father from whom all love and wisdom, all things created, and salvation itself, pour forth. There is but one feast day dedicated to the Blessed Trinity (ditto, the Holy Ghost), whereas there are numerous days devoted to the BVM, our Lord, and the saints. The Trinity is such a profound reality, presence, and Being that it should compel far more worship and prayer from us. He most certainly is directly accessible to us in our prayer life. It is worthy of note that when Jesus spoke of prayer it was always 'to the Father'.

A feast for the Trinity was observed here and there in the mediaeval era, but was not a universal observation until after Thomas Becket's time. It was Becket, who, as Primate of all England, made it universal in the English Church. A few decades, I believe, after Becket's martyrdom and following his example, it was made universal throughout the Western Church.

A now departed Dominican priest whom I did much music for liked to tell of one of Theresa of Avila's conversations with God in which He told her 'I Am He Who Is, and you are she who is not'.