My oldest is taking a music in religion course at the university. One of his assignments is to visit several services of various faiths and do a report on how they use music. Since he didn't want to go alone, I've been going with him.
He wants to do Easter Vigil for his Catholic portion.
Being non-Catholic ourselves, I'm only vaguely aware of the etiquette, having only been to midnight Christmas mass before. He's also chosen a brand new cathedral in a much more affluent area than the one I'm familiar with. I attempted to simply go ask there and was a bit surprised to find locked doors. I have visited many Catholic churches in my travels just because they are beautiful and never been met with a locked door before.
So, I have a couple questions:
1. Are visitors welcome to Easter Vigil. I know it's something of a special occasion. Would just a regular mass be better?
2. At present, my only dress shirt is a black one from my grandma's funeral. I really don't wish to offend anyone and can go procure something else if this will.
3. I know enough to cross the arms and not take the Eucharist, any other etiquette I might not know?