(Photo credit: Eric Woolsey) “The Barber of Seville” can be tough to sit through. Opera Theatre Saint Louis (OTSL) swam upstream furiously against the libretto’s banalities to produce an entertaining show, with standout performances from Justin Austin in the title role, and Hongni Wu as Rosina. In youth, I received as a gift the London/Decca recording featuring Leo Nucci as {…}