How echt can you get? Attend this interactive, family-friendly “festival for experimental music and object theater”—whose trailer shows sound being rhythmically extracted, by physical, electronic, and often dramatic means, from desk lamps, bannisters, and lettuce—and you too can say “Ich bin ein Berliner.” Careful, though: they’ll probably try to squeeze sound out of donuts, too. (Ja, ja, I know the JFK flub is an urban myth, but I couldn’t resist.) —E.E.