Of most interest to foreign visitors will be the occasional Indonesian cultural performance such as gamelan from Solo or puppetry from Yogyakarta.
Performances aside, the building is a fantastic example of old Dutch colonial architecture. Built in 1821, the interior of the theatre still retains that old world charm and it is possible to peek your head inside on most days.
Check the website for performance schedules.
The Travelfish newsletter is sent out every Monday and is jammed full of free advice for travel in Southeast Asia. You can see past issues here.