player who made recordings for the U. S. Library of Congress in 1941. Revival During the late 1960s, the United States saw a roots revival of the Native American flute, with a new wave of flutists and artisans such as Doc Tate Nevaquaya, John Rainer, Jr., Sky Walkinstik Man Alone, and Carl Running Deer. The music of R. Carlos Nakai became popular in the 1980s, in particular with the release of the album "Canyon Trilogy" in 1989. His music was representative of a shift in style from a traditional approach to playing the instrument to incorporate the New-age genre. Mary Youngblood won two Grammy Awards in the Native American Music category for her Native American flute music in 2002 and 2006. She remains the only Native American flutist to be distinguished in this way, as the National Academy of Recording Arts and Sciences retired the category in 2011. Today, Native American flutes are being played and recognized by many different peoples and cultures around the world. Community music The Native American flute has inspired hundreds of informal community music groups which meet periodically to play music and further their interest in the instrument. These groups are known as flute circles. Several national organizations have formed to provide support to these local flute circles: WFS — World Flute Society (U.S.A.) FTF — FluteTree Foundation (U.S.A.) (formerly RNAFF, Renaissance of the North American Flute Foundation) JIFCA — Japan Indian Flute Circle Association (日本インディアンフルートサークル協会) (Japan) Popular appeal The Native American flute has gained popularity among flute players, in large part because of its simplicity. According to a thesis by Mary Jane Jones: Flutists and composers Notable and award-winning Native American flutists include: Jan Michael Looking Wolf, R. Carlos Nakai, Charles Littleleaf, Joseph Firecrow, John Two-Hawks, Kevin Locke, Aaron White, Robert Mirabal and Mary Youngblood. A few classical composers have written for the Native American flute, including James DeMars, David Yeagley, Frank Martinez, Brent Michael Davids, Philip Glass, Jerod Impichchaachaaha' Tate, and Fabio Mengozzi. Legal issues 1990 Indian Arts and Crafts Act The 1990 Indian Arts and Crafts Act of the United States criminalized deceptive product-labeling of goods that are ostensibly made by Native Americans. In the United States, wrongfully claiming that an artifact is crafted by "an Indian" is a felony offense. The US Department of the Interior explicitly states on its informational website about the Act that, "Under the Act, an Indian