Sometimes, our memories, even of hard and testing times, return to us sweetly, like a fleeting song. That’s how playwright Brian Friel remembers one summer from his childhood in rural Ireland in 1936, a moment on the brink of devastating change to his family’s livelihood. Theatre Knoxville Downtown presents Friel’s play based on these memories, ‘Dancing at Lughnasa’, directed by Barry Wallace, a conflicting and bittersweet contemplation on memory, hope, and the painful inevitability of change.