They are playing Stephen Sondheim’s A Little Night Music at Zwickau, in eastern Germany.
All was going well until, on Monday, the lead tenor, Marc-Eric Schmidt, failed to show. Something to do with a train delay, apparently.
Up pops the music director, Leo Siberski, and sings his role on stage.
Repetiteur Mark Johnston deputised in the podium for what is not an easy score.
When the tenor finally turned up, the conductor jumped back into the pit and normal service was resumed.
Like, who needs tenors?
UPDATE: Marc-Eric Schmidt tells us: