Relationship to Other Chapters

Chapter XI integrates formal organization with previously developed techniques:

• Chapter III (Added Values): Periods incorporate added values as rhythmic enrichment.

• Chapter V (Nonretrogradable Rhythms): Example 147 contains nonretrogradable rhythm, showing palindromic structures operating at period level.

• Chapter IX (Bird Song): Examples 143–145 employ bird style, integrating ornithological material into period structures.

• Chapter X (Melodic Development): Commentary sections employ elimination, interversion, and registral change to develop thematic material.

• Chapter XII (Fugue, Sonata, Plainchant Forms): This chapter on small-scale sentence forms prepares for the next chapter's discussion of large-scale formal archetypes.

• Chapter XIV (Special Chords, Clusters, Connections): References to borrowing harmonies from chord of resonance and stained-glass window effects show harmonic context for melodic periods.

• Chapter XVI (Modes of Limited Transpositions): Multiple examples reference specific modes (Mode 2 in Examples 135, 147; mixture with E major tonality in Example 137), showing melodic organization within symmetrical modal collections.

The chapter demonstrates that traditional formal categories (period, sentence, antecedent-consequent) remain applicable to non-tonal music organized through modal and rhythmic systems rather than functional harmony.