Why do Indians play on their knees?

Playing the Indian flute on your knees is a way of playing, standing or sitting. According to relevant public information, Indian flute (American native flute) is the original musical instrument played by North American Indians. It has been used in countless new era and world music records, and is famous for its unique and unforgettable timbre. Indian flute is used in native American music and other styles of music. Indian flute is beautiful, soft and high-frequency.