A cappella means "in the style of the chapel."This, combined with an historical misunderstanding, led to the modern understanding of the term, which means "voices only." All instruments, percussive sounds, echoes, electronic sounds, and sound effects are made only with sounds from the human voice and body. The beauty of a cappella is its accessibility to many people. It harnesses people's strengths while enabling them to participate in music making, without their being held back by the areas of their sound production that are less developed. Throughout history, song has been an important part of world culture and an important mode of expression of human kind. In modern culture, such activities as karaoke and singing in shower evidence people's desire to experience joy and community through the creation of sound. - Keith Raniere