*Places of worship must therefore discontinue singing and chanting activities and limit indoor attendance to 25% of building capacity or a maximum of 100 attendees, whichever is lower. 

https://www.breitbart.com/faith/2020/07/02/california-bans-singing-in-church/

“Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.”