The MIVB's opera programme is centred on the metro stations De Brouckère (11am - 6pm) and Rogier (4:30pm - 6pm). Surprise performances can be expected on metro lines 1 and 5 between the stations Sint-Katelijne and Merode. On lines 2 and 6 the action is between the South Station (Zuidstation/Midi) and Elisabeth.
Opera singers can also be expected on services on tram lines 3, 4, 92, 93 and bus line 71.
European opera houses including the Brussels Muntschouwburg are staging open days too. These will allow you a look behind the scenes.