[18] [See Illustration, No. 10.]
[19] [See Illustration, No. 9.]
[20] See Illustrations, Nos. 15, 16, and 8, respectively.
[21] [See Illustration, No. 12.]
[22] [See Illustration, No. 13.]
[23] [See Illustration, No. 14.]
[24] The Dirichlets were his younger sister and her husband, a professor of mathematics.
[25] “Infelice.”
[26] Meaning himself.
[27] Alluding to Beethoven’s habit, in conducting, of crouching down at a pianissimo and flying up at a forte.