I suggest not to do it. It is really painful in the orchestra when the orchestra has gotten sharper than what you are comfortable with and you have to play a mi

I suggest not to do it. It is really painful in the orchestra when the orchestra has gotten sharper than what you are comfortable with and you have to play a minor third. I remember playing Mahler 2. The hall was hot as hell and the orchestra had risen from A441 to what must have been A445. I had to play a major sixth and it was borderline revolting. I stopped practicing it after some experiences like that. Knowing what note to play by some absolute measure is only useful if you are playing alone. What you play in an ensemble is relative to a lot of other people.