Binary form consists of two sections, both repeated (A A' - A in tonic, A' in either dominant or relative major).

Binary form consists of two sections, both repeated (A A' - A in tonic, A' in either dominant or relative major).

• A. Rounded binary form
• B. Binary form consists of two sections, both repeated (A A' - A in tonic, A' in either dominant or relative major)
• C. Ternary form
• D. Simple form

Answer: (B)

Binary form is built from two main sections, each of which is repeated. The first section stays in the home key (tonic) and presents material that is heard twice as A then A’. The second section shifts to a related key—most commonly the dominant or the relative major—and that section is also repeated. The description given matches this structure exactly: two sections, both repeated, with the first in tonic and the second in a related key (dominant or relative major). This pattern—A A’ followed by a contrasting section in a new key—is the hallmark of binary form. For comparison, ternary form adds a third section that returns to something akin to the opening material, and rounded binary is still two-part but typically involves the A material reappearing toward the end of the second section.

Binary form is built from two main sections, each of which is repeated. The first section stays in the home key (tonic) and presents material that is heard twice as A then A’. The second section shifts to a related key—most commonly the dominant or the relative major—and that section is also repeated. The description given matches this structure exactly: two sections, both repeated, with the first in tonic and the second in a related key (dominant or relative major). This pattern—A A’ followed by a contrasting section in a new key—is the hallmark of binary form. For comparison, ternary form adds a third section that returns to something akin to the opening material, and rounded binary is still two-part but typically involves the A material reappearing toward the end of the second section.