AllMusic

AllMusic (previously known as All-Music Guide and AMG) is an American online music database. It catalogs more than three million album entries and 30 million tracks, as well as information on musicians and bands. Initiated in 1991, the database was first made available on the Internet in 1994. AllMusic has been owned by RhythmOne since 2015.

==History== AllMusic was launched as All-Music Guide by Michael Erlewine, a "compulsive archivist, noted astrologer, Buddhist scholar, and musician". He became interested in using computers for his astrological work in the mid-1970s and founded a software company, Matrix, in 1977. In the early 1990s, as compact discs (CDs) replaced LPs and cassettes as the dominant format for recorded music, Erlewine purchased what he thought was a CD of early recordings by Little Richard. After buying it, he discovered it was a "flaccid latter-day rehash". Frustrated with the labeling, he researched using metadata to create a music guide. In 1990, in Big Rapids, Michigan, he founded All Music Guide with a goal to create an open-access database that included every recording "since Enrico Caruso gave the industry its first big boost".