My "nit-picks" are as numerically proceeds:
1) Eva Pandini--is the last name spelled correctly?--commenced practice at four thirty AM. This practice must have lasted for two hours, considering the sun was shining brightly when Mr. Pandini was notifying his children of the telegram received and thus implied it was at least six AM. A two-hour practice?
2) There is a boy in the audience sitting beside Mr. Pandini with his eyes closed, then with his eyes opened and Mr. Pandini approaching him in one scene, and then with his eyes closed and Mr. Pandini again approaching the boy in yet another sequential scene.

NNAN: This Hungarian family is becoming Americanized very quickly; they don't speak Hungarian even when alone with each other!