How to say "all together" in Latin when inviting people to sing?

Question

I am the canter at my local Catholic Church, and need to discretely say "all together" in Latin to invite people to sing the response for the Kyrie, and other chants.

I've found a few words that might match the meaning I'm looking for, but I'm not very experienced with Latin grammatical rules, and don't want to say something that cannot be used by itself. I rather learn the translations of the chants by heart, and therefore only know the words I ever had to use when signing.

These two sources provide a few plausible expressions:

• https://www.wordhippo.com/what-is/the/latin-word-for-9034ff9e2b8f00b47a44dfaf3c2a37176c101e2a.html
• https://www.wordhippo.com/what-is/the/latin-word-for-d87c448044defb778f33158d8ccf94a20531d600.html

Or is there a commonly used expression that canters or the priest use to indicate to the assembly to sing along?

Answer 1

I do not know what is usually said, but in musical notation, the expressions are sometimes found:

• Omnes (example here)
• Chorus plenus
• Concentus plenus

Chorus/concentus plenus means "the full chorus," which seems like it is not really a form of address. I would therefore suggest saying Omnes, which, to be honest, would have been a very obvious idea in the first place.

Answer 2

What about “toti”? The advantage is that in Italian (the Latin of classical music) you use “tutti” to mean “all together”, the opposite of “solo”.