I'm in the Festival Choir at our Parish. When our Pastor arrived 8 or 9 yrs. ago, he wanted to start up Midnight Mass again. The usual choir for the 10:45 Mass (with the pipe organ) didn't want to do Midnight, they prefered the 4:30 Christmas Eve Mass, so the organist called for volunteers. We jumped at the chance and have been doing it ever since. We sing for Midnight Mass, two Easter Sunday Masses and Confirmation. We have a great time because we all WANT to be there.
I am an alto, and I don't truly read music so I have to memorize my parts. I've gotten to where I can guess a note by the approximate interval, but I really need to learn to read it well.
I always say, "God gave you your voice, so give it back to Him"!