Multiple Choice
A triad that contains the notes A and C could also contain which of the following notes?
(1 point)
Responses
F
F
B
B
E
E
F or E
F or E
The correct answer is F or E.
To answer this question, we need to understand how triads are constructed. A triad is a three-note chord consisting of a root, a third, and a fifth. Triads are built by skipping every other note in a scale.
In this case, we know that the triad contains the notes A and C. To determine the possible additional note(s), we need to find the notes that are a third and a fifth away from A.
To find the third note, we count two whole steps (or four half steps) above A. A whole step consists of two half steps. Starting from A, we count A#, B, C. So, C is the third note.
To find the fifth note, we count four whole steps (or seven half steps) above A. Starting from A, we count A#, B, C, C#, D, D#, E. So, E is the fifth note.
Therefore, the triad that contains the notes A and C could also contain the notes F or E.