Reason #161: The Wall of Sound
Particularly at the scholastic level, most a cappella groups feature ten or more singers. While a big group can lead to all sorts of complications when it comes to harmonizing, balance, and staging, it also opens up some unique opportunities when staging and sound converge for a spectacular moment.
Take the wall of sound. Group members storm the front of the stage, getting as close to the audience as they can, and sing their loudest, all on the same part, all in unison. The effect is an all but monolithic voice that compels every eye and every ear in attendance to the stage.
Used gratuitously or to ill effect, the wall of sound can wear out its welcome. Used at the climax of a particularly powerful song, it’s the stuff standing ovations are made of.
I love it!