The human voice is an extremely versatile instrument. It can bend, run and stretch over as many as four octaves. While singing has generally been accompanied by instruments such as the piano and the guitar, some artists have thrown aside instruments in favor of their own voices. Read more...
Photo: Rising to fame on the NBC show “The Sing-Off,” Pentatonix, originating from Arlington, Texas, and now based in Los Angeles, has found a way to transform traditional a cappella music through stretching the limits of beatboxing and vocality.
