Capella is an Italian term that means choir or in the chapel. The gospel quartet singing style of the chapel is sung without any instrumental aid.
What is Capella?
The quartet singing style of the gospel in Capella is the fourth part of the harmony that is a singing style by the singers without any use of instruments.
It is a style of music and singing that is performed by the unaccompanied voices of the singers without any musical beats and sounds.
Singing in church is called Sacred harp, whereas singing with an orchestra is called a choral symphony, and singing with a brass band is called brass band music.
Therefore, Capella is option D. singing without musical instruments.
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