(in addition) For R&R and Jazz, I keep each person/groups stuff in chronological order (not title alpha order).
This means I have to remember what the history of the group is and when they played what... but it is far more rewarding. The clearest use of this system can be used in the works of Miles Davis.. Where he had very different styles throughout his career. In fact Miles Davis was the reason I changed all the R&R/ Jazz to this system.
This would work for Classical.. but I am too lazy for that big effort. For Classical I sort by composer, then in that composers works I start single, duo, trio, quartet... etc. and for each work I sort that group by conductor's last name, or the person/group name. (So for the many Beethoven's Fifth, I have them in conductor order)