2. PRINCIPLE OF OPERATION
Connect to the computer your favorite MIDI instrument (usually a keyboard with a MIDI or 
USB output, but also guitar MIDI, MIDI accordion ...) 
Connect to the computer a MIDI synthesizer (sound generator)  
vA2 take  care  to  recognize  "real  time"  played  arrangements  and  generate  a  complete 
orchestration  in  the  chosen  style,  while  allowing  you  full  control  over  all  aspects  of  your 
instrumental Thurs 
Instead  of  developing  software  with  thousands  of  parameters  to  enter  into  menus  and 
sub-menus, we opted for an integrative approach. 
So we decided to offer a ready-to-use solution for  the musician, from beginning to end, the 
chain of sound production. 
Of course, the software is inherently scalable and we are in constant technological monitoring to 
integrate progressively solutions that really seem workable for the musician. 
Our first choice turned to integration Ketron SD2 sound module.
Following one of the possible configurations  for the vA2:
![360px]](/wiki/images/d/d1/Fig78.jpg)