MUSA (Music of the United States of America) is a 41-volume series of critical editions of American music, representing the full range of genres and idioms that have contributed to American musical culture. It was established by the American Musicological Society in 1988 and is hosted by the University of Michigan at its American Music Institute. The criteria used in developing MUSA volumes are: That the series as a whole reflect breadth and balance among eras, genres, composers and performance media That it avoid music already available through other channels, duplicating only where new editions of available music seem essential That works in the series be representative, chosen to reflect particular excellence or to represent notable achievements in this country's highly varied music historyMUSA receives funding from the National Endowment for the Humanities and is published by A-R Editions of Madison, Wisconsin. The founding editor-in-chief of MUSA is Richard Crawford, and the current editors-in-chief are Mark Clague (University of Michigan) and Gayle Magee (University of Illinois, Urbana-Champaign). Source: Wikipedia (en)