Allmusic is a service of music guide, owned by All Media Guide

All Media Guide

All Media Guide , is the company which owns and maintains Allmusic, Allgame and Allmovie. AMG was founded in 1990 by popular-culture archivist Michael Erlewine....

. Allmusic was founded in 1991 by popular-culture archivist Michael Erlewine

Michael Erlewine

Michael Erlewine is an American musician, astrologer, and Internet entrepreneur who founded All Music Guide in 1991.- Background :...

 as a guide for consumers. Its first reference book was published the following year. When first released onto the Internet, AMG predated the World Wide Web

World Wide Web

The World Wide Web is a system of interlinked hypertext documents accessed via the Internet...

 and was first available as a Gopher site.

AMG headquarters is located in Ann Arbor, Michigan

Ann Arbor, Michigan

Ann Arbor is a city in the U.S. state of Michigan and the county seat of Washtenaw County. The 2010 census places the population at 113,934, making it the sixth largest city in Michigan. The Ann Arbor Metropolitan Statistical Area had a population of 344,791 as of 2010...

, United States

United States

The United States of America is a federal constitutional republic comprising fifty states and a federal district...

.
Allmusic's database, which is licensed and used in point-of-sale systems by some music retailers, includes:

• Basic data: names, genres, credits, copyright information, product numbers.
• Descriptive content: styles, tones, moods, themes, nationalities.
• Relational content: similar artists and albums, influences.
• Editorial content: biographies, reviews, rankings.

Allmusic also claims to have the largest digital archive of music, including about six million digital songs, as well as the largest cover art library, with more than half a million cover image scans.

The Allmusic database is also used by several generations of Windows Media Player

Windows Media Player

Windows Media Player is a media player and media library application developed by Microsoft that is used for playing audio, video and viewing images on personal computers running the Microsoft Windows operating system, as well as on Pocket PC and Windows Mobile-based devices...

 and Musicmatch Jukebox

Musicmatch Jukebox

Y!Music Musicmatch Jukebox, a remake of the original Musicmatch Jukebox made by Musicmatch, Inc., is an audio player that manages a digital audio library...

 to identify and organize music collections.