[Illustration: Example 2. Fragment of Beethoven.]
Compare the groups marked a and b, and observe how the principles of unity and variety are both active in these four measures, and how their effect is heightened by the formation of c.
(5) The figures of the accompaniment, though reproduced in uniform rhythmic values and melodic direction, undergo constant modifications in pitch and in shape, similar, to those shown in Ex. 2. See, again, No. 37 of the Songs Without Words and note the changes in the formation of the otherwise uniform six-tone groups.
LESSON 1.—The student is to study this chapter thoroughly, and write answers to the following questions; if possible, without reference to the text:—
1. What does Form in music mean?
2. Define the conditions which constitute good form.
3. When is a composition faulty in form?
4. What do discriminating listeners recognize in music?
5. What is the difference between the sounds of music and those of language?