The Key of Q is a unique cultural organization in the Hudson Valley, an a cappella chorus of LBGTQ and allied singers who perform in civic and often very cool venues such as Opus 40, a monumental earthenware construction in Saugerties. The group’s mission has gotten more controversial since it was founded in 2016 as the Trump administration has made diversity a sin and gender non conformance undesirable. But chorus leaders Teri Gibson and Keri Jadrovski tell Rosemary Armao that audiences are receiving the group more enthusiastically than ever perhaps in defiance and resistance.