The Harmonics are rehearsing an acapella arrangement I made of "All You Need is Love".
Here are videos of the original:
The sound is better here, but the video is unrelated:
My goal is acapella arranging is usually to import the original version that everybody knows into the vocal idiom. I remove or subtly alter what I can't make work for voices, and add touches that can work.
As for the arrangement, the increasingly exuberant back beat that drives the original is missing from my arrangement. I'll figure it out soon :)