The publication of a dictionary in one's discipline is always a welcome event, allowing its users to quickly find essential information on a variety of topics, people, and institutions. The second edition of the Grove Dictionary of American Music (hereafter AmeriGrove II), an eight-volume set comprising some 5300-plus pages, offers a comprehensive view of all musics American; it is a delight to peruse. At more than double the length of its predecessor, which was published in 1986, AmeriGrove II covers an even wider array of topics. It “refers to musical life and cultures within the region now covered by the 50 states, the District of Columbia, and US territories. [It] likewise features coverage of the music-making practices of native cultures whose occupation of these regions predates European contact” (1:vii).