Johann Nepomuk Hummel came to Vienna in 1785, with his father, who afterwards undertook the conductorship of the opera, under Schikaneder; at seven years of age the young Hummel already created great expectations by his clavier-playing. A pupil of Mozart's, named Freystädter, brought Hummel to him in 1797; the boy played one of the easier sonatas (with which Mozart had no fault to find, except as to the hurried _tempo_), and then one of his newest concertos by heart.[32] Thereupon Mozart decided to undertake Hummel's instruction, but only on condition that he resided with them altogether. We are not told how often or with what regularity he received lessons; but he heard Mozart play, and had to play over to him any clavier music that came into the house. One evening Mozart returned late from some entertainment with his wife, and found a piece of music which he was curious to hear. Young Hummel, who had been awaiting their return, had lain down on a couple of chairs and fallen asleep. "Stanzerl," said Mozart, to his wife; "wake Hans, and give him a glass of wine." No sooner said than done; and the boy played the new piece of music, late at night as it was.[33] Mozart's musical instruction was sure to be desultory. Freystädter relates that he generally received Mozart's directions and corrections of his musical exercises sitting at a side-table, while a game of bowls was going on.[34] Attwood {MOZART'S LESSONS IN THEORY.} (28l) also tells us that Mozart sometimes persuaded him to join in a game of billiards instead of taking a lesson.[35] The pupils did not consider their master guilty of caprice and neglect; but felt themselves spurred to activity by their intercourse with him. Mozart took young Hummel everywhere with him, made him play, played duets with him, and declared that the boy would soon excel himself as a pianist. Hummel was greatly attached to Mozart, both then and ever after; he remained in his house for two years, until in November, 1788, his father set out with him on a professional tour.