What type of registers did the gentleman use on “Let Their Be Peace On Earth?”

I think it would be safe to say chest voice. Since this is a choir, I can’t speak for everyone, but most of the men in this song seem to be singing from their chest voice and not their head or mixed voice. It is very full sounding.

The correct answer is:   [c]:   " ansel adams " . 

The "maple leaf rag" (copyright registered on september 18, 1899)[1] is an early ragtime musical composition for piano composed by scott joplin. it was one of joplin's early works, and became the model for ragtime compositions by subsequent composers. it is one of the most famous of all ragtime pieces.[2] as a result joplin was called the "king of ragtime". the piece gave joplin a steady if unspectacular income for the rest of his life.