AP Music Theory Practice Quiz: Major Keys and Key Signatures
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Test your understanding with short quizzes. This quiz has 14 questions to check your progress.
Question 1 of 14
All Questions (14)
A) The tempo of the music
B) The specific pitches of a major or minor scale
C) The dynamic markings in a passage
D) The rhythmic pattern of a melody
Correct Answer: B
The content states, 'The specific pitches of a major or minor scale are represented by its key signature.' This directly links the key signature to the pitches of the scale.
A) The key of C major
B) The key of D major
C) The key of G major
D) The key of G minor
Correct Answer: C
The text explains, 'When a particular major or minor scale is used prominently within a musical passage, the music is said to be in the corresponding key of that scale.' Therefore, prominent use of the G major scale means the music is in the key of G major.
A) A pitch that does not belong to the given scale
B) A pitch that is played with a specific rhythm
C) A pitch that belongs to a given major or minor scale
D) A pitch that serves as the tonic
Correct Answer: C
The content explicitly states, 'Pitches that belong to a given major or minor scale are said to be diatonic.'
A) Tonic
B) Diatonic
C) Dominant
D) Chromatic
Correct Answer: D
The text defines chromatic pitches by stating, 'pitches that do not belong to the given scale are said to be chromatic.'
A) Identifying the composer of the melody
B) Memorizing the entire melody after one hearing
C) Accurate identification of the relationship of the pitches to the tonic
D) Knowing how to play the melody on an instrument
Correct Answer: C
The content specifies that 'Accurate dictation of a performed melody depends on accurate identification of the relationship of the pitches to the tonic.'
A) G
B) B-natural
C) C
D) B-flat
Correct Answer: B
The key of F Major contains the pitches F, G, A, B-flat, C, D, E. A pitch is chromatic if it does not belong to the scale. Since B-flat is in the scale, B-natural is an altered pitch and is therefore chromatic.
A) G-sharp
B) C-natural
C) F-sharp
D) E-flat
Correct Answer: C
The key of D Major contains the pitches D, E, F-sharp, G, A, B, C-sharp. A pitch is diatonic if it belongs to the scale. F-sharp is part of the D Major scale and is therefore diatonic.
A) Key signature identification
B) Chromatic analysis
C) Melodic dictation
D) Scale construction
Correct Answer: C
The content describes the process of 'notat[ing] the pitches and rhythms of a performed melody' and later refers to 'Accurate dictation of a performed melody.' This skill is melodic dictation.
A) F Major
B) E-flat Major
C) A-flat Major
D) C minor
Correct Answer: C
This question tests the skill to 'Identify major keys and key signatures in notated music.' A key signature with four flats (B♭, E♭, A♭, D♭) corresponds to the key of A-flat Major.
A) G Major
B) D Major
C) A Major
D) B minor
Correct Answer: B
This question tests the skill to 'Identify major keys and key signatures in notated music.' A key signature with two sharps (F♯ and C♯) corresponds to the key of D Major.
A) A key signature defines a key, which is then used to build a scale.
B) The prominent use of a scale's pitches establishes the key, and the key signature is the notation that represents those specific pitches.
C) A key is a collection of chromatic pitches, which are represented by a key signature and organized into a scale.
D) A scale and a key are identical, and both are notated using diatonic symbols called a key signature.
Correct Answer: B
The text states that using a scale prominently puts the music in that 'key' (Content 3), and that the 'specific pitches' of that scale are 'represented by its key signature' (Content 4). Option B correctly sequences this relationship.
A) The highest note of the melody
B) The final note of the melody
C) The tonic of the key
D) The chromatic pitches in the melody
Correct Answer: C
Content point 5 states, 'Accurate dictation of a performed melody depends on accurate identification of the relationship of the pitches to the tonic and the notation of the sounding pitches and rhythms.' The tonic is the central point of reference.
A) Only major keys
B) Only minor keys
C) A major or minor key
D) Only keys with no sharps or flats
Correct Answer: C
Content point 2 explicitly states that this skill involves a melody 'composed in a major or minor key,' indicating it applies to both.
A) All pitches will be chromatic.
B) The pitches prominently used belong to the E-flat major scale and are represented by a key signature of three flats.
C) The music will only use the pitch E-flat.
D) The pitches are unrelated to a key signature and are chosen at random.
Correct Answer: B
This question combines multiple concepts. Being 'in the key' of E-flat Major means the E-flat major scale is used prominently (Content 3). The pitches of this scale are diatonic and are represented by its key signature (Content 4), which for E-flat Major is three flats.