[Page 43], Example 2, meas. 2, upper part: The sixth note (g′♯) should be an eighth-note.
[Page 44], Example 1, meas. 2, second part: Last note should be g♮.
[Page 47], Example 1, meas. 2, upper part: First note, e″, should be f″.
[Page 47], Example 1, meas. 2: Add tie between last note in third part and the following note.
[Page 91], Example 2, second part: Third note from end should be f′♯.