This Good Friday, in Toronto, the Mendelssohn Choir will be staging a concert (Music for a Sacred Place) in St. Paul's Minor Basilica. The fact that the music is "sacred" irrelevant. Good Friday is the most sombre day of the year. A church is a public place of prayer, distinguishing it qualitatively from other places and similar activities in such other places.
Good Friday is a day for prayer in a church consecrated for liturgical services. We are not even talking here of a church that has been discontinued for liturgy and assigned for other activities, as may be done by the local Ordinary per modum actus.
Starting at 7:30 p..m., one will not hear the sound of the Stations of the Cross - but a choir and the audience cheering and applauding.