DU MUSST CALIGARI WERDEN (YOU MUST BECOME CALIGARI). Prior to  the start  of the Film you can hear the insane one writing his diary (often in unusual areas of the concert hall), coupled with accoustic flashes from the soundtrack to CALIGARI, as well as screeches that seem to emanate from beyond the thick walls of an insane-asylum.

[translated by Michael Rook and Gordon Stephan]