As part of the program of the initiatives of the recently rejuvenated Benedict XVI Institute for Sacred Music and Divine Worship, which is under the patronage of His Excellency Archbishop Cordileone and the Archdiocese of San Francisco, the Latin Mass is to return to San Quentin State Prison with the first Mass scheduled for August 25th.
The Institute runs its own schola which is a teaching choir that can visit parishes and communities in order to enable communities to chant the Mass. Archbishop Cordileone recently visited the prison with the schola for an evening of musical meditation and prayers and when there proposed the idea to the prisoners who attended. The response was enthusiastic and gratifying. 
Maggie Gallagher, the director of the Benedict XVI Institute tells us about the evening:
I have just come back from an extraordinary evening with some extraordinary news for you: The Latin Mass is coming back to San Quentin for the first time in three generations!
Last night, our new Benedict XVI Institute Schola and Teaching Choir went to San Quentin for three reasons:
First to give men forgotten by many in society the uplifting experience of pure Sacred Beauty—with music performed by four very talented professional singers.
Second, to teach these men they can chant too; Just hearing these men chant the Litany of the Saints together was inspiring! Our Benedict XVI Institute Schola and Teaching Choir is not just a performing choir: we aim to show ordinary Catholics they can participate in the Mass in this special way.
So our third and most important goal last night was to invite the men at San Quentin to form a schola that will help bring back the Traditional Latin Mass on August 25. And guess what? Twenty-five men said yes!
This overwhelming response was for me a totally unexpected gift from God. Here’s how the evening went: I drove in with Archbishop Cordileone and met Father Cassian (who will celebrate the Latin Mass August 25) as well as a prison volunteer and the Catholic chaplain Father George Williams at the entrance. As we walked into the Chapel, Father George told us: “The men are just very grateful you are here. Feel free to chat with them, they love that.”
Prison is a kind of community and like any community, there are some who actively work to make it better. We met a lot of men like that last night. Dwight, the sound guy, introduced himself and started asking about how we want to be miked for the Latin Mass. “Bobby”, an old hand, told me he used to sing the Latin Mass at St. Peter’s in the Mission district [of San Francisco] with the “Christian brothers.” (What a gorgeous old San Francisco church I would love to do a chant camp there! Take a look!) “Sam” who sat behind me, was a Protestant curious what this new music sounded like. He’s only been in San Quentin for two weeks “but the church scene is popping!” he told me.
Father George Williams introduced Archbishop Cordileone for the opening prayer. “This is our brand-new teaching choir and you are our first gig!” he told the men to thunderous applause. “I love telling people our first teaching gig is the San Quentin Schola!”

https://www.thewayofbeauty.org/blog/2018/8/nrlaqlw0uumi04v6rvbtpjjuagtkls?fbclid=IwAR0UF

The Latin Mass is coming to San Quentin.