But singing down to Bb is extremely hard for me.
C# would be good for Silent Night.
It would be easier if people started using head voice. That is one of the problems I have with congregational singing.
I am wondering if it is easier if I only sang with trained singers…but even trained singers are afraid of head voice.
Are keys too low because people disslike head voice or are there other reasons?
Are you sure older hymns went up to high A?
In opera high A is the high note for the baritones.
You ask some good questions.
I think most people who haven’t had any formal music training don’t know what the head voice is or how to use it. So that’s the answer to your question about why people don’t use their head voice to sing the higher notes.
I agree with you that almost everyone should be able to sing at least the D above C (not middle C, the higher C above that).
But again, if they haven’t been taught how to sing, and if they attended public schools (and many private schools, too, sadly), they may not have been taught to use a head voice.
As you have noticed, not knowing how to sing head voice means that people are singing in their chests, and this limits them to a lower range.
It’s too bad, but it’s the way things are. I suggest that you sing out with joy, doing a higher-pitched descant if you are able to improvise it on the fly, and I assure you that all the people around you will love hearing a sublime singer doing the beautiful hymns (and even the hymns that aren’t so beautiful, too!). A beautiful voice can make even the less-than beautiful hymns sound lovely.
I wish I could tell you that your Music and Liturgy Director would be willing to conduct a “voice training” class for all interested members of the parish who want to learn to sing correctly and develop a larger range. Chances are good that if he/she did offer such a class, very few people would show up, and it would probably be the people who already know how to sing and just want to improve.
But as I said earlier, you could try taking a few lessons from a voice teacher in your area with the goal of trying to develop more of your lower range. Not sure if it will work–depends on your anatomy. If you have shorter, more delicate vocal chords, you’ll probably never be able to reach those low notes. But that’s OK–use the voice God gave you and bring joy to others.
I hope this is helpful.