AP Music Theory Practice Quiz: Interval Inversion and Compound Intervals
Written by AP Content Team, Verified for 2026 AP Exams, Last updated: May 2026
Test your understanding with short quizzes. This quiz has 9 questions to check your progress.
Question 1 of 9
All Questions (9)
A) Compound interval
B) Simple interval
C) Inverted interval
D) Perfect interval
Correct Answer: B
The content explicitly states, 'Intervals whose sizes are smaller than or equal to an octave may be called simple intervals.'
A) By inverting the simple interval
B) By adding an octave to the simple interval
C) By subtracting a perfect fifth from the simple interval
D) By transferring the lower note down an octave
Correct Answer: B
The text states, 'When an octave is added to a simple interval, the result is a corresponding larger interval called a compound interval.'
A) Adding an octave to the upper note
B) Transferring the upper note down an octave
C) Reversing the notes without changing the octave
D) Transferring the lower note up an octave
Correct Answer: D
The content specifies that 'An interval’s inversion may be determined by transferring the lower note up an octave.'
A) A compound interval
B) A perfect octave
C) Another simple interval
D) Two octaves
Correct Answer: B
The text provides a key rule: 'An interval plus its inversion equals a perfect octave.'
A) Only in notated music
B) Only in performed music
C) In both performed and notated music
D) Only in theoretical analysis
Correct Answer: C
The first point of the content states that these intervals can be identified in 'a. performed music b. notated music.'
A) Simple interval
B) Compound interval
C) Perfect inversion
D) Diminished interval
Correct Answer: B
Simple intervals are defined as being smaller than or equal to an octave. Therefore, an interval larger than an octave corresponds to the definition of a compound interval, which is a simple interval plus an octave.
A) A perfect fifth
B) A simple interval
C) An octave
D) A compound interval
Correct Answer: C
The text defines the process of inversion as 'transferring the lower note up an octave.' This means the note is moved by the interval of an octave.
A) A unison
B) A perfect fifth
C) A perfect octave
D) A compound third
Correct Answer: C
This question tests the fundamental rule provided in the text: 'An interval plus its inversion equals a perfect octave.' This relationship is constant regardless of the starting interval.
A) A simple interval is the inversion of a compound interval.
B) A compound interval is a simple interval with an added octave.
C) A simple interval is always perfect, while a compound interval is always major.
D) A compound interval is formed by transferring the lower note of a simple interval up an octave.
Correct Answer: B
The content defines a compound interval as the result of adding an octave to a simple interval. Option D describes inversion, not the creation of a compound interval.