The "traditional" Native American flute was constructed using measurements based on the body – the length of the flute would be the distance from armpit to wrist, the length of the top air chamber would be one fist-width, the distance from the whistle to the first hole also a fist-width, the distance between holes would be one thumb-width, and the distance from the last hole to the end would generally be one fist-width. Unlike Western music, traditional American Indian music had no standard pitch reference such as A440, so flutes were not standardized for pitch.