Never 
For the record, I am stuck in the 80s with most of my Hard Rock and Metal bands that surprisingly are still recording new stuff today.
No it does not
I have my own genres, mostly coded as numbers - and practically the same First World problem as you
The best sollution to it seems to be... wait for it... deletion of excess of music and acquisition of new music reduced to almost zero
You are right. I have started 'archiving' albums and tracks that I don't use regularly, but really hate to destroy them permanently. I have combined several collections that even include the digital library from a radio station, and several family members and friends. Of course there were duplications to deal with, but it has produced a great library. Right now I'm listening to 'The Sock Hop Collection' that I think is a Time-Life Records release. Great memories from my teenage years.
From our travels I have added albums from several other countries that feature their artists recommended by folks we have come in contact with there.
How do you remember what genre is behind the coded numbers? It's a novel concept.
Incidentally, you can find lots of the old collections online that have been digitally cleaned by DLF Music.
As I stated here
Those categories [i.e. "genres"] like "working out", "reading", "falling asleep", " are coded with two digits numbers. It is not that hard to remember them, especially when you skip some and group them thus use something like 61, 63, 65 and 72, 74, 75 with 88, 88, 89 [but not 62, not 71, not 81 and 82 etc.]
And those RPG-genres [RPG music categories] also have numbers but I display them with names [e.g. "dungeon", "cosmos" etc.]. But the numbers on them are also important because they are used by my cleaning action for putting them, with all of the others categories, in a predefined order [Moving part of TITLE to GENRE - #6 by Zerow]. And "RPG" does not mean "just when playing role-playing games" but also when "reading a certain book" or "trying to illustrate a certain video"
I personally really find it quite pointless and way too much time wasting to wonder about "is this song hard rock and progressive rock or only progressive" [or whatever "legit" combinations you can think of / stumble upon]. But maybe that is more obvious to me as songs in my collection and tracks done by bands are less than 50%, with majority of the music being instrumental, mostly from various scores
And even my RPG-system seems to me sometimes as being time wasting. Because in the end all you need to know is:
- mood
- tempo [and if they are changes in it]
- "modernity" [are the sound more electronic / futuristic or traditional / made with old instruments]
- vocals [are the any words, vocalizations - or nothing i.e. just music]
I think we're just doing the same thing in different ways. Some of my categories are
Easy Listening
Big Band Era
60's Folk
Early American Folk
Classical Orchestra
Classical Vocal
Piano Concertos
Country Vocal
On thing that would be nice would be to make it easy to use the RANDOM feature but then to also play a complete orchestral work, for instance, once it begins instead of just doing random tracks.
I am a fan of all kinds of all genres as from Pop -> Metal -> Oldies -> Punk -> Classical etc etc
But there is one genre I always return to more frequent then others and that is Soul, be it Motown, Northern Soul or Philly Soul.
Jazz / Funk / Soul. I was 16 in 1982 in the era of Hip-Hop and from there got into the tracks they used as samples (breakbeats etc.) which opened up a whole new world for me. Before that it was Punk/Rock.
Not to say I don’t listen to most genres, I do. My latest fave is Grace Bergere (A Little Blood), amazing stuff and has a tinge of Beck (Midnite Vultures/Sea Change) to it.