Beethoven's Letters 1790-1826, Volume 2 By Ludwig van Beethoven With respect to his playing with you, when he has finally acquired the proper mode of fingering, and plays in right time, and gives the notes with tolerable correctness, you must only then first direct his attention to the mode of execution; and when he is sufficiently advanced, do not stop his playing on account of little mistakes, but only point them out at the end of the piece.