I'm a pianist and have (or rather had) jobs accompanying choirs. Choir rehearsals are on hold for now but I'm trying to Think Positively. So, I'm wondering if anyone has tested the V3 masks for singing, in case it becomes possible for small groups to meet in large spaces to sing together. It would be really helpful to know if the larger mask design worked for the kind of breath control and sound production that singing requires -- that is, singing for a longish time in rehearsal situation. Thanks for any impressions or reviews! (and apologies if I have posted this twice. I tried once but I don't think it went through.)