With Stresemann knocked out cold, Nodame "convinces" Chiaki to be substitute conductor for the special orchestra. Chiaki agrees and finds out that the group he's conducting is out of synch. As the rehearsal falls apart, Stresemann takes over and demonstrates everything that Chiaki failed to do. Stresemann finally accepts Chiaki as his student but tells him to remain a piano major. The piece performed in the episode is Symphony No. 7, Op. 92 by Ludwig van Beethoven. (thetvdb.com)