Which of these was Beethoven suffering from when he wrote his ninth symphony?

Beethoven's deafness created one of the most known and touching stories in music. When the symphony was completed, he remained facing the orchestra and could not hear the thunderous applause of the audience for his new symphony. At the conclusion of the symphony, Carolyn Unger, the mezzo-soprano soloist, had to tap the deaf composer's arm and have him turn around so that he could see the crowd's response. Many of those in attendance, including Miss Unger, had tears in their eyes when they realized the extent of Beethoven's deafness.

That moment is rightfully considered to be one of the important turning points in the history of music. The symphony has been interpreted in many different ways and had a significant impact on a big number of outstanding composers.