1. Respect your uniform.
2. Respect other members, as you wish to be respected.
3. Respect times and obligations pledged.
4. Engage yourself with seriousness and enthusiasm.
5. Be assiduous and punctual: your absence could be influential to the choir` s progress.
6. Show your responsibility with full knowledge of your role, without clutching to the member, next to you.
7. Make your voice, the best in the choir.
8. Accept majority decisions
9. Do not discredit the group or its members with inane criticism.
10. Do not forget that everyone is useful, but nobody is           
    indispensable.

Check out the original 1970's document with The Choir's Commandments