VIDEO: onStage Pittsburgh’s Sharon Eberson chats with the directors of the 3-play August Wilson American Century Cycle Experience – Terrence Spivey, Ashley Southers and Mark Clayton Southers – on the set of ‘Two Trains Running,’ at Madison Art Center, which will also present ‘Ma Rainey’s Black Bottom’ in a new cabaret space. Pittsburgh Playwrights’ annual outdoor production at the August Wilson House is the Pulitzer Prize-winning ‘Fences.’