AllMusic: The Comprehensive History of the World's Largest Music Database
In the vast landscape of digital information, AllMusic (formerly known as All-Music Guide or AMG) stands as one of the most influential American online music databases. It serves as a massive digital archive, cataloging over three million album entries and 30 million tracks, alongside extensive data on musicians and bands. From its origins as a physical reference book to its current status as a global web resource, AllMusic has fundamentally shaped how we categorize and discover music.
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Key Facts
- Founded: 1991 by Michael Erlewine.
- Current Owner: RhythmOne (acquired in 2015).
- Scale: Over 3 million albums and 30 million tracks cataloged.
- Core Feature: A sophisticated system of 1,400 music subgenres.
- Technology: Powered by a combination of MySQL and MongoDB.
The Origins of All Music Guide
The project was initiated by Michael Erlewine, a musician and archivist with a background in software and astrology. The inspiration for the database came from a personal frustration in the early 1990s. After purchasing what he believed was a collection of early Little Richard recordings, Erlewine discovered the CD was actually a poor-quality modern rehash. This experience highlighted the desperate need for accurate metadata—the structured information that describes a piece of data—in the music industry.
In 1990, Erlewine founded the All Music Guide in Big Rapids, Michigan. His ambitious goal was to create an open-access database encompassing every recording since the era of Enrico Caruso. The first iteration was not a website, but a 1,200-page reference book published in 1992, titled All Music Guide: The Best CDs, Albums & Tapes, which came packaged with a CD-ROM.
Evolution into a Digital Powerhouse
As the internet evolved, so did the guide. In 1994, it launched as a text-based Gopher site before migrating to the World Wide Web. To build the platform, Erlewine collaborated with database engineer Vladimir Bogdanov and writer Stephen Thomas Erlewine. The team was further bolstered by Chris Woodstra, whose encyclopedic knowledge of music helped refine the site's editorial depth.
One of AllMusic's most significant contributions to musicology was the development of 1,400 distinct subgenres. This allowed the site to connect data intelligently, enabling users to navigate everything from massive genres like classical to niche styles such as "sadcore." This granular approach to categorization made the site fundamental to the modern understanding of pop culture.
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Corporate Transitions and Growth
The success of the database led to several changes in ownership. In 1996, Alliance Entertainment Corp. purchased the company for $3.5 million. Following Alliance's bankruptcy in 1999, assets were acquired by Ron Burkle's Yucaipa Equity Fund, and the company relocated to Ann Arbor, Michigan. During this period, the staff grew from 12 to 100 employees, and the catalog expanded to include 350,000 albums, 30,000 artist biographies, and 120,000 reviews.
In 2007, TiVo Corporation (then known as Macrovision) acquired AllMusic for $72 million. In 2015, the database was purchased by BlinkX, which later became RhythmOne. Throughout these transitions, the site maintained its role as a primary resource for music discovery, though it has occasionally complied with artist requests for data removal, such as the 2012 removal of Bryan Adams' information.
The All Music Guide Publication Series
Beyond the website, the All Media Network produced a comprehensive series of "Definitive Guides" and "Required Listening" books. These publications provided expert analysis across a wide array of musical styles.
| Genre/Category | Notable Publications |
|---|---|
| Popular Music | The Definitive Guide to Popular Music (1992–2008) |
| Classical | The Definitive Guide to Classical Music (2004) |
| Jazz | The Definitive Guide to Jazz Music (1994–2002) |
| Rock & Soul | Definitive Guides to Rock, Pop, Soul, and R&B (1995–2003) |
| Urban/Electronic | Definitive Guides to Hip-hop, Rap, and Electronica (2001–2003) |
| Blues & Country | Definitive Guides to the Blues and Country Music (1996–2003) |
| Curated Lists | Required Listening series (2007–2008) |
Frequently Asked Questions
Who created AllMusic?
AllMusic was created by Michael Erlewine, a musician and archivist, who founded the All Music Guide in 1990 to provide accurate metadata for recorded music.
How many tracks and albums does AllMusic catalog?
The database catalogs well over three million album entries and 30 million individual tracks.
What makes AllMusic different from other music sites?
AllMusic is distinguished by its highly detailed categorization system, which includes 1,400 music subgenres, allowing it to track styles and tones across a vast spectrum of music.
Who currently owns AllMusic?
AllMusic has been owned by RhythmOne since 2015.
Was AllMusic always a website?
No. It began as a 1,200-page reference book in 1992, followed by a Gopher site in 1994, before eventually moving to the World Wide Web.