1.Outline / 2.The Progression of the Story / 3.Stage(1) / 4.Stage(2) / 5.Stage(3) / 6.Stage(4) / 7.The Final Word&Credits
 
     
  MIDI Control Systems
     
  During this opera two Mackintosh computers are used to control lighting and sound generation and management, in which MIDI control systems play a central role. The computers have been called the "RacMac", and the "DeskTopMac" and are set up as follows. All control functions are split between these computers and are carried out with the MAX/MSP patches that have been installed.  
   
  "RacMac"  
  Model: PowerMac9600 + G3/233MHz upgrade
+ 196MB memory
+ 4 * Xclaim VR video board (PCI cards)
+ Korg 1212 I/O audio card (PCI cards)
+ MidiTimePiece II (MIDI interface with serial connection)
 
   
  "DeskTopMac"  
  Model: PowerMacG3 233MHz + 196MB memory
+ Korg 1212 I/O audio card (PCI card)
+ MIDI Translator (MIDI interface with serial connection)
 
   
  The functions of the MAX/MSP patch installed on the "RacMac" have been divided into specific modules according to their function:
* AOclock.m : the control of the lamp inside the 'lantern' and the timing of the overall systems that control the performance output information that comes from the keyboards.
* AOscore.m : the control of the projection of the musical scores.
* AOsound.m : the control of the algorithms and generation of the white noise and sin waves.
* Delay8000.m : the video delay and the delay of the timed music in Part 2 (2b).

The "DeskTopMac" is used in Part 2 (2b, 2c) for the following:
* The sound generation and control of the white noise and the sampled voices.
* The control of the lighting in the 'lantern' and the 'device'.
* The metronome click and the control of the tuning note sent to the vocalist through the headphones.

Other computers used are:
PowerBookG3:
Used in Part 3 (3a) for sampling voice (software sampler) of the keyboard performance.
PowerBook5300:
This computer is not used for the main performance but rather to simulate the performance of the keyboards for rehearsals and sound checks.