Sorry about that, Greg .. I should have known.
But I don't think there are any rules or problems.
Have fun with your D!

You are exactly right Greg.
Now that you have a D, you have a much wider range of keys to match your singing skills.
In my band, we have picked out the best 30 songs I can sing in D or A, my favorite keys to sing in; than 15 in C and G, my not so favorite; and about 15 in Bf, for when I start to have squeaking issues vocally and the fiddler thinks he is up to it.
Like Peer and the other guys said, there's nothing carved in stone.
You can even modulate and change keys the second time around if you feel like giving the dancers an extra little lift.
Make it sound Cajun, that's the main key.
JB

Great answer JB thanks!
That's exactly what I need to heard...
I also have a lil' band, that's why I had these reflexions!
So when I'll write the chord grids for each tunes (my musicians need it), I'll write in this form:
I, IV, V and not G, C, D or A, D, E
By this way, I'll could use the key I prefer or change the key if I want!
Greg

So Greg why don't you post a little song with you singing in your key of D on here so we get a feel of what you bring

And why don't you?

Randy4u on the accordion

https://www.youtube.com/watch?v=j98TMY5SMW8&list=PL3DC2336AEF2207A1

Randy,
your You Tube didn't work.
Put it in as a link and try sending it again again.
Would like to see you play.
JB

Greg,
Your guys will appreciate if you chart the song via Nashville numbers.
You can also teach them the color clue.
Our guys all know the brown accordion is the D/A and the black one is in C/G.
JB

https://www.youtube.com/watch?v=j98TMY5SMW8

fking hobo likes my music I see

Yes, that is correct. Play in whatever key you want. No rules.

"Take chances! Get messy! Make mistakes!" - Ms. Frizzle (The Magic School Bus)

Yeah!

one thing that might restrict the possibilities, though, is singing

usually a person can;t sing a given melody in just any key

there will be a range that sounds good or great or passable for the voice capability of the singer

wle