We are going to go to a church friends' house on Friday for fellowship and some psalm singing. Although they have a piano which they suggested I play, I kind of want to not dothat, since I find it hard to sing and play at the same time. So, supposing a bring a pitch pipe and offer to start us off, what note do I use? For example, let's say we sing CRIMOND in F, they first two notes of which are C and A. Which of those do I use? My guess is that conventionally the time the first note is used, but my personal inclination would be to play F.