As we came together in a shared physical space after Covid, we continued to wear masks as a safeguard against resurgences of the virus. Choirs were, after all, a major source of contamination.
We even gave several concerts donned in special masks that gave us extra breathing room. But they did muffle our sound and diction while also fogging our glasses.
What a relief, then, when our director agreed about a month before our last set of concerts that we could go without the masks, if we individually desired.
What a difference it made! We were clearer in tone and lyrics, and our sound projected better. Our ability to hear each other also improved. It was like being unshackled.
It was like declaring the pandemic over, though we knew the virus was lingering.
What single move gave you that ah-hah! Breakthrough as we came out of the Covid onslaught?
Jnana's Red Barn 
For me it was the time I entered the grocery store without a mask, and got to see the actual unmasked face of a friendly cashier with whom I had bonded over our mutual silly masks. But singing unmasked with my choir? Also a great joy!