Speak about your or someone else's visit to the theatre (a concert, a circus show, etc) You can use the following
to buy tickets at the box office
to invite someone to the theatre
to see a drama (a ballet)/to listen to an opera (a concert, ets)
to leave the clothes at the cloakroom
to have seats in the stalls (gallery, circle, balcony, etc)
to buy a programme
to bring (get) a pair of opera glasses