[Ghost_Medley]

I think that limited labelling unfortunately leads to consequences of things existing outside that labelling, and then that needs to be appended on later. Some examples are anchors/runningmen causing spikes, grace notes adding difficulty in easier files, and some files containing rhythms that don't fit normal quantization schemes. (I will call them "irregular" when needed, in line with Pizza's use.)

Oh. And in my opinion, color theory is an influence in difficulty in enough excess.

BTW, I've put my own files under spoiler:

Gamma Stop Sending Me High Quality Rips : 16th one-hand-trills, 16th jump-streams, 32nd bursts | Certain

EBONY & IVORY [Standard] : irregular trills, 16th jump-streams | Uncertain

Marble Mountain : 24th one-hand-trills, 32nd rolls | Certain

Snake Devil [Oni] : 20th streams, 8th mini-jacks | Certain

If Trees Could Speak : 16th jump-streams, 32nd bursts | Uncertain

Autoprocess : 8th split-jump-jacks, 16th trills, 16th split-jump-trills | Certain

Ants Of The Sky : 16th jump-jacks, 16th jacks, 12th jump-streams | Certain

Title Theme (Bean Dreams) : 16th jump-streams | Certain

South For Winter : 16th jump-gluts, 96th flams | Certain

Giselle : 16th jump-gluts, 32nd trills, 48th bursts | Certain

Seppuku : 32nd bursts, 16th jump-streams | Certain

Kirlian Voyager : 32nd mini-trills, 16th jump-streams | Certain

!!!Chaos Time!!! (Cut Edition) : 16th jump-streams, 32nd bursts, 16th split-jump-jacks, 16th trills, 32nd rolls | Certain

PhonDrome! [Oni] : 16th/12th jump-gluts, 48th rolls, 16th mini-jacks, 32nd trills | Certain

Sakura Fubuki (Arrange Ver) : 16th jump-streams, 16th mini-jacks, color theory | Uncertain

100 Hours of Regrets : 32nd bursts, 12th jump-gluts, 16th jump-streams | Certain

Atmosphere : 32nd jump-streams | Certain

Gamma Stop Giving Me Hard Bags : 16th jump-streams, 32nd bursts, 12th jump-jacks, 32nd rolls | Certain

Robert Desire : 16th trills, 8th jump-streams | Certain

zZz : 48th rolls, 16th jump-streams | Certain

Nihil Descent : 16th split-jump-jacks, 32nd bursts, 16th jacks | Certain

Tengaku (Instrumental) : 32nd streams, 16th jump-gluts, 16th mini-jacks | Certain

theyaremanycolors : 16th split-jump-trills, 32nd bursts, 16th jump-streams, color theory | Uncertain

EBONY & IVORY [Heavy] : 48th rolls, 24th trills, 16th jump-streams, 24th bursts | Uncertain

Banban Cooking (Short Cut) : 16th jump-jacks | Certain

Curry Dayo! : 16th jump-streams, 32nd bursts | Certain

Giselle (full act) : 32nd trills, 16th jump-gluts, 48th bursts | Certain

Human Convention : 16th jump-gluts, 16th mini-jacks, 16th jump-streams | Certain

Upshift : 16th jacks, 16th jump-gluts, 32nd bursts | Certain

Out of Sight, Out of Mind (8-bit) [Standard] : 16th jump-streams, 16th streams | Certain

GAMEBOY : 24th jump-streams | Uncertain

Edit: I overlooked "flams" as part of the list. South For Winter's "grace" classification should instead be "flams".

Edit Edit: I replaced all the dashes with colons for Rapta's automation syntax.

Edit Edit Edit (Ursus arctos arctos edition): Fixed up most cases of "irregular", and rewrote pattern names to match list of OP.