File structure for iTunes

I‘ve re-worded my search question several times and still get “no results for my question” results. So, my apologies in advance for asking what I’m sure is about as basic as never eating a laundry soap pod....wait. Anyhoo...

i dilligently and painstakingly organized my digital music files in what I thought was the best folder structure.

New iTunes/artistname/albumname/songfile

for those troublesome multi artist, revolving tuba player, other hand in the artists cookie jar scenarios, I did:

New iTunes/Original Television Cast/Television Show/music file

New iTunes/Original Broadway Cast/Broadway Show/music file

New iTunes/Original Motion Picture/Motion Picture Show/music file

(And yes, it’s a big deal. As a gay guy, my Show Tunes gene shines brightly!)

But, upon starting a fresh, new iTunes folder and importing the music files, it seemed like a two-year-old intercepted things and threw the files everywhere. (I may be sleep-deprived and needing to bandaid areas where I pulled out clumps of hair, but a I swear that brat giggled at me as one point.)

What am I missing? Thanks!