Gustave Reese ( REESS; 29 November 1899 – 7 September 1977) was an American musicologist and teacher. Reese is known mainly for his work on medieval and Renaissance music, particularly with his two publications Music in the Middle Ages (1940) and Music in the Renaissance (1954); these two books remain the standard reference works for these two eras, with complete and precise bibliographical material, allowing for almost every piece of music mentioned to be traced back to a primary source. Source: Wikipedia (en)