54. B.
55. A
I'm pretty sure these are the answers. I hope that helped with those two
Short answer-half note.
In common time the quarter note equals one beat, and there are four quarter notes in a measure.
Songs in alla breve contain two beats per measure, with the half note equaling one beat. That means that the time signature of the alla breve is represented as 2/2 (not 4/4 as common time is).
Do you have a link to the video of the commercial
Answer: i think the answer is A sorry if incorrect
Explanation: