Dearest PIANOEXPERT, I am asking you again... but is the lid list removed that easily even for the other grand piano brands? Is there no need to remove the side blocks as well..
Every house fixes it differently, but you don't need more than a screwdriver. The cardboard can be inserted sideways without dismantling anything. You will have the foresight to shape it so that there is a protruding edge (..but not visible!!!!) to be able to retrieve it.
