Short answers, pulled from the story.
Michael Erlewine established All Music Guide in Big Rapids, Michigan in 1990. He had previously founded a software company called Matrix in 1977 after becoming interested in using computers for his astrological work during the mid-1970s.
Alliance Entertainment Corp purchased All Music from Michael Erlewine in 1996 for a reported $3.5 million. TiVo Corporation bought the site in late 2007 while it was known as Macrovision at the time of the transaction, and BlinkX purchased AllMusic in 2015 before the entity became RhythmOne.
The platform catalogs more than three million album entries and thirty million tracks of information on musicians and bands. By February 1999, the catalog had already grown to include 350,000 albums and two million tracks.
Vladimir Bogdanov worked as a database engineer to design the underlying framework for the project when the first online version launched in 1994. He currently serves as president and main editor of the All Music Guide series produced by All Media Network.
A dedicated guide to Classical Music arrived in 2004 while Country guides began publication in 1997. Electronica received its own definitive guide in 2001 and Hip-hop followed in 2003, with Jazz publications starting in 1994 and updates appearing in 1996, 1998, and 2002.