Here's an interesting one from the 70's. A rock mass performed by Bakery in 1971 in front of St George's Cathedral in Perth WA.

Notes below from watvhistory on youtube.

It was one of the first Australian musical works of its kind, preceding the first Australian production of Jesus Christ Superstar by almost a year. It was a hip and happening place at St George's Cathedral in Perth. Rock masses became a feature at the Cathedral and thousands attended to hear and be moved by updated church music more relevant in an era of Christian rock musicals such as Godspell and Jesus Christ Superstar.

The Dean of Perth, the Very Rev. John Hazlewood presided over the event, which was written and performed by local drummer Bruce Devenish, and his Jazz Ensemble and the rock group Bakery, with vocalist Tom Davidson, John Worrall, Peter Walker (ex-Jelly Roll Bakers), Mal Logan (ex-The Rebels), bass player Eddie McDonald and Hank Davis (ex-members of the NZ Avengers).

Use of the heritage listed Cathedral for loud rock music is believed to have contributed to its decay, worsened earlier by the Meckering earthquake in 1968, thereby needing millions in government money for restoration.

The music fitted the Christian Rock, Psychedelic Rock and Jazz-Rock genres with the LP released world wide.

Line-up of musicians on the studio recording...

Tom Davidson / vocals,
John Worrall / vocals, flute
Mark Verschuer / vocals
Eddie McDonald / bass
Rex Bullen / keyboards
Hank Davis / drums

LP Release information

Astor ALPS 1032, Australia
Decca DL 7-5328, Canada

Bakery was formed in Perth at the start of 1970, changed their line-up over time and continued gigging until their split in February 1975.