A.
Three triangular sides and a square base
Nadia plays two intervals at once on the piano in a bright burst of sound. The MOST likely thing that she is playing is <u>A: A chord</u>
<u>A CHORD</u> is a type of pitch that has many notes and sound as if they are played at the same time.
Based on the question, we are told that Nadia is playing two intervals at once and it gives her a bust of sound.
What this means is that she is most likely playing a chord.
Therefore, the correct answer is option A
Read more here:
brainly.com/question/17900566
