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

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

The major triads are chords that consist of three notes - the root, the major third, and the perfect fifth.

Looking at the options:

A. The notes from lowest to highest are F, A, C. This is not a major triad because the interval between F and A is a minor third, not a major third.

B. The notes from lowest to highest are E-flat, G, B-flat. This is a major triad because the intervals between E-flat and G (a major third) and G and B-flat (a perfect fifth) satisfy the requirements.

C. The notes from lowest to highest are G, B, D-sharp. This is not a major triad because the interval between G and B is a minor third, not a major third.

D. The notes from lowest to highest are A, C, E. This is a major triad because the intervals between A and C (a major third) and C and E (a perfect fifth) satisfy the requirements.

Therefore, the answer is A and D.

To determine which chords are major triads, we need to understand what a major triad is. A major triad consists of three notes: the root, the major third, and the perfect fifth.

Let's analyze each option:

A. The notes are F, A, C. To determine if this is a major triad, we need to find the intervals between each note. From F to A, the interval is a major third, and from A to C, the interval is a minor third. Therefore, option A is not a major triad.
B. The notes are E-flat, G, B-flat. Similarly, we analyze the intervals. From E-flat to G, the interval is a major third, and from G to B-flat, the interval is a minor third. Therefore, option B is also not a major triad.
C. The notes are G, B, D-sharp. Again, let's analyze the intervals. From G to B, the interval is a major third, but from B to D-sharp, the interval is an augmented third. Therefore, option C is not a major triad.
D. The notes are A, C, E. Now, analyzing the intervals, from A to C, the interval is a major third, and from C to E, the interval is also a major third. Therefore, option D is a major triad.

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