"This is not a scholarly research paper. It is a user guide to allow us to ponder a new world of choir rehearsals ahead. It is specifically written for SFGMC leadership. Some of this may not apply to other choruses. That said, there is a considerable amount of research that contributed to this. Some of the sources are listed at the bottom of the article. In addition, I have had the assistance of three physicians (one of whom is a psychiatrist) who sing in the chorus (and will be adhering to the protocols they suggested!)."