All my Non-TA, Non-FC Neal music is under one folder, titled "Morse, Neal" (as I do last names first for easy finding in my Master Music Folder). In that folder, I have several folders: 0.5 - Demos, 1.0 - Studio Albums, 1.5 - EPs, Compilations & Other Albums, 2.0 - Official Live Albums, 3.0 - Inner Circle Fan Club Discs, 4.0 - Unofficial & Other Albums.
The Demos folder is pretty self-explanatory, and I've recently shuffled things around into that one given that Neal has begun releasing demos for his earlier solo prog albums lately. These are just the demos for his albums since Testimony, including demos for TGE/TSOAD/TGA, but not including anything written for TA or FC.
The Studio Albums folder contains all of the Non-TA/Non-FC studio albums released by Neal AND the Neal Morse Band, since Neal hasn't really released BOTH a solo album and a NMB album in the same year. Yes, I know The Exorcist and TGA came out in the same year, but I put The Exorcist in my next folder...
EPs, Compilations and other albums includes things like his Christmas album by The Prog World Orchestra, the compilation Sing It High, and one of the few singer-songwriter albums of his that I own, Life & Times. I put The Exorcist here because it's more of a musical than a prog rock album, and I'll be honest, I just haven't listened to it more than once or twice. It's also quite a different thing than his normal rock albums usually are, I think, but that's just me and my opinion. On my phone, though, I've got it, his solo albums, and the NMB albums all under "Neal Morse" for quick and easy finding.
The Official Live Albums folder contains anything Neal has released as a live album through official channels and labels, although I did throw in the various Morsefest nights in to single folders by year. For example, Morsefest 2016 has a folder for the Storytellers Show, and a shortcut to Snow Live (which is actually housed under my SB folder, of course), as well as the Inner Circle concert released through the fan club. It just makes it easier to find everything from a single Morsefest if I have all the performances of that year under one folder.
The IC folder is pretty self-explanatory as well, and I've ripped all my hard copy CDs from when he still released them physically, organized by year and month (for example, 2020-01 - But Wait... There's More!, and 2020-03 - Continuing The Adventure, for this year's IC releases so far).
And lastly, the Unofficial Albums folder is just a place to put different cuts of albums I've made, but it currently only holds a single folder with 8 tracks, one for each "Part" of the Testimony story from Testimony and Testimony 2, a 3:22:06 experience!
That was probably way more of a detailed answer than anyone ever needed about how I store my Neal Morse music, but there ya go.
-Marc.