From the paper copy publishers of the standard reference All Music Guide, this site contains ratings and reviews of more than 400,000 record albums. Search by artist, album, song, style, or label. Access information on new releases, music styles, music maps (guides to the evolution of a musical genre), articles, and a glossary. Entries on artists include a musician/musical group's history, roots and influences, musical style, discography, guest performances, and reviews.