Fivethirtyeight.com featured a discussion of how people organize their book collection, with strong opinions on all sides. That prompted me to ask G-T-ers: How do (or did) you organize your music collection - CDs, records, etc... ? I don't have a physical collection anymore, but when I did, I put all pop music together, alphabetical by artist, then chronologically within each artist. Compliations and soundtracks were separate, alphabetically. Classical was separate, alphabetically by composer; same thing with comedy. How about you?