The main principle of design used in the image is balance
Answer: Chorus and Orchestra
Explanation: During the "Hallelujah Chorus" from Handel"s Messiah, there's a chorus, as well as an orchestra.
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).
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