I know nothing about this subject, so I apologize if this is a naive viewpoint. But it seems that the orchestra is all assembled and collecting a paycheck that doesn't increase if they play the overture, so I'm not sure I understand why their parts would not be live. Is there a precedent for pre-recording everyone's parts for the overture? Has some other show done this? Or is there some technical reason why that would be advantageous for this show?