Elsie and Ethan. (Photo courtesy Elsie Gawler) CAMDEN — Camden Opera House, 29 Elm St., continues to welcome the public back inside with its SoundCheck series of small, safely distanced performances. On Friday, May 14, at 7:30 p.m., Midcoast duo Elsie & Ethan will bring their music to the downtown opera house stage. Sales of advance-only tickets, $10 via camdenoperahouse.com and 236-3154, end 3:30 p.m. on show day. Seats for the hour-long concert will be assigned on a first come/first served basis. Elsie Gawler and Ethan Stokes Tischler perform handcrafted original songs and tunes, as well as traditional Maine and Celtic fiddle tunes, mixing vocal harmonies and multiple instruments.