Finding tenors is tough for Northland Barbershop Chorus. The long-time Sault Ste. Marie group recently lost two of its six members who can deliver the highest harmony part. Even worse, they were “our two youngest and strongest” tenors,” said music director Bob Shami in an email to The Sault Star. “ Most barbershop choruses are particularly challenged to find tenors,” he said. “ It seems that as one ages, it gets harder to sing the high notes.” Shami is