I have major categories of classical, pop/rock, jazz, country, and comedy/novelty. The classical section is organized by music periods in chronological order--Renaissance, Baroque, Classical, Romantic, Impressionist, and 20th century. I also have a separate section for operas and cantatas. Each music period is alphabetized by composer, e.g. Bach, Handel, Telemann, Vivaldi. Compilations and some music genres are put at the end of the classical block--Baroque collections, classical guitar, etc. Pop/rock, jazz, country, and comedy are each alphabetized by artist, e.g., Beach Boys, Beatles, Carpenters, Ray Charles, etc.
I have them stored vertically in three Ikea cases subdivided into 13" open cubes.
I have them stored vertically in three Ikea cases subdivided into 13" open cubes.