Multiple Choice

Which of the following chords are major triads?
A. A triad is displayed on the treble staff. The notes from lowest to highest are F, A, C. B. A triad is displayed on the treble staff. The notes from lowest to highest are E-flat, G, B-flat. C. A triad is displayed on the treble staff. The notes from lowest to highest are G, B, D-sharp. D. A triad is displayed on the treble staff. The notes from lowest to highest are A, C, E.
(1 point)
Responses

A and B
A and B

A and D
A and D

C
C

D

D

The correct answer is D. A triad is displayed on the treble staff. The notes from lowest to highest are A, C, E.

To determine which of the given chords are major triads, we need to understand what a major triad is. A major triad consists of three notes: the root note, the major third, and the perfect fifth. The major third is four semitones above the root, while the perfect fifth is seven semitones above the root.

Now, let's analyze each option:

A. The notes in this chord are F, A, C. To determine if it is a major triad, we look at the intervals between the notes. The interval between F and A is a major third, which is correct. However, the interval between A and C is a minor third, not a major third. Therefore, this is not a major triad.

B. The notes in this chord are E-flat, G, B-flat. Again, we need to analyze the intervals. The interval between E-flat and G is a major third, and the interval between G and B-flat is a perfect fifth. So, this chord is a major triad.

C. The notes in this chord are G, B, D-sharp. Let's analyze the intervals. The interval between G and B is a major third, which is correct. However, the interval between B and D-sharp is an augmented third, not a perfect fifth. Therefore, this is not a major triad.

D. The notes in this chord are A, C, E. Analyzing the intervals, we see that the interval between A and C is a major third, and the interval between C and E is a perfect fifth. Thus, this chord is a major triad.

Considering our analysis, the correct answer is:
D. A triad displayed on the treble staff. The notes from lowest to highest are A, C, E.

Therefore, the answer is (D) A and D.