Music Index (EBSCO) The Music Index, produced by Harmonie Park Press, is the single most comprehensive annual subject-author guide to music literature. Published since 1949, The Music Index contains surveyed data from more than 725 international music periodicals from over 40 countries in 23 languages. Covering all styles and genres of music, The Music Index duly cites book reviews, obituaries, new periodicals, and news and articles about music, musicians, and the music industry.