Spirit Flute, Lesson 2 – Learn to Play the Spirit Flute: The Spirit Flute is a Native American Flute (NAF) withOUT any fetish to adjust. The NAF is already the third easiest of all instruments to learn to play (#1 is the common Police Whistle and #2 is the Kazoo). Spirit Flute now also come in Japanese, Blues and Middle Eastern scales. How easy is THAT?!!!