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AP Music Theory Practice Quiz: Tonicization through Secondary Leading Tone Chords

Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026

Test your understanding with short quizzes. This quiz has 7 questions to check your progress.

Question 1 of 7

What is the primary harmonic function of a secondary leading-tone chord, such as a viio⁷/V?

All Questions (7)

What is the primary harmonic function of a secondary leading-tone chord, such as a viio⁷/V?

A) To tonicize the dominant chord

B) To permanently modulate to a new key

C) To create a plagal cadence

D) To function as a pre-dominant chord for the global tonic

Correct Answer: A

The notation "/V" indicates that the chord's function is to temporarily elevate the dominant (V) chord to the status of a tonic. This process is called tonicization.

The root of a secondary leading-tone chord (viio/X) is always which scale degree relative to the chord being tonicized?

A) The supertonic

B) The subdominant

C) The leading tone

D) The subtonic

Correct Answer: C

By definition, a secondary leading-tone chord is built on the leading tone (a half step below the root) of the chord it is tonicizing.

According to the provided text, in which inversion must a secondary leading-tone TRIAD (viio/X) appear?

A) Root position

B) First inversion

C) Second inversion

D) Any inversion is permissible

Correct Answer: B

The content explicitly states that the secondary leading-tone triad appears only in first inversion (viio⁶).

How does the use of inversions for secondary leading-tone SEVENTH chords (viio⁷/X) differ from their triadic counterparts?

A) Seventh chords must also be in first inversion.

B) Seventh chords are only used in root position.

C) Seventh chords may appear in any inversion.

D) Seventh chords are restricted to third inversion.

Correct Answer: C

The text specifies that unlike the triads, secondary leading-tone seventh chords may appear in any inversion (root position, first, second, or third).

In the key of F Major, which chord correctly represents viio⁶/V?

A) A diminished triad in first inversion

B) B diminished triad in first inversion

C) G diminished triad in first inversion

D) E diminished triad in first inversion

Correct Answer: B

In F Major, the V chord is C Major. The leading tone to C is B. Therefore, the viio/V is a B diminished triad. The notation viio⁶/V specifies that this triad must appear in first inversion.

In the key of A minor, a G# fully-diminished seventh chord (G#-B-D-F) is used to tonicize which diatonic triad?

A) i (A minor)

B) iv (D minor)

C) V (E major)

D) VI (F major)

Correct Answer: A

The root of the G# diminished seventh chord is G#. G# is the leading tone of the key of A minor itself. Therefore, this chord is the primary leading-tone seventh chord (viio⁷) which resolves to the tonic (i). While it tonicizes the tonic, it is not a *secondary* leading-tone chord in this context, but the question asks which triad it tonicizes.

What is the inherent chord quality of all secondary leading-tone chords, whether they are triads or seventh chords?

A) Major

B) Minor

C) Augmented

D) Diminished

Correct Answer: D

The provided text states, "These chords are diminished triads and diminished seventh chords (fully or half-diminished)." This is because they are built on the leading tone of the chord being tonicized.