As one bitterly disappointed singer posted on Facebook after the pandemic had ended all choir rehearsals, “Every time I hear someone go, ‘Hey, is there an app that can let me do a choir rehearsal with no latency?’ NOT UNLESS YOU BREAK PHYSICS, YA DUMMY.” Baritone David Newman replied, “Physics are not insurmountable.” And his solution requires only some inexpensive audio equipment available at almost any Walmart or Best Buy. – Los Angeles Times