YTPMVs

The popular shifting is only mentioned narrowly in the article, although it seems to be the most common one people usually refer to now as “YTPMVs”.

I think there should be more focus on that aspect, since most modern YTPMVs are much different from the Dr. Octagonapus one, which is unpitched and just plays the footage “normally” on the entire screen with a music playing in the background.
There are exceptions (e.g. “MAMAMAMA-MAMAMA-MAMA”)

But I’ve even seen a couple of YTPMVs like the one from Dr. Octagonapus without the shifting that got a miserable rating because they were related videos of the “modern YTPMVS”, and the community is already used to pitch shifting and YTPMVs that for the most part sound smooth and appealing, and apparently does not want to see the more YTP-like variants anymore.

Also what seems to be completely unmentioned is the way the footage is assembled.
You’d be surprised how much there’s to talk about:

The different parts of footage with the sounds that can currently be heard are normally assembled next to each other and only seen while they are played (“Super Mario Scan.”), often with one “main tune” in the background and the other footage around this one (“Octascan”), scaled down if necessary (“Intensive Gaston Unit”).
When game music gets made into a YTMPV, gameplay might be seen in the background instead. (“My Little VVVVVV – Pony Cooker”, “Touch Filly, Get Silly”)
Footage that gets pitch-shifted is often mirrowed (“Mega Man Weed Tangent – Smoke Man”, “Regular No”), fades down (“Chowder & Mung’s Great Growing Adventure”) or jumps slightly up and down to reflect the the tone pitch.
In a similar manner, footage with higher tunes is sometimes also arranged on top with deeper tunes on the bottom (“Blocks Flash”)
Footage that produces a single long note sometimes gets zoomed out (“Nightmare-athon”)

Some YTPMVs also use a short introduction scene (“BenderSide”)

And then there are also “No BGM YTPMVs”, where a melody is imitated entirely by just using footage (quite a bunch of my previous examples, or “Ponyville Cantina”)

Another common convention that can be seen when checking through all the mentioned titles is that they are puns of the original music title, adapted to the footage used. (And as stated in the article, many of them don’t use the term “YTPMV” in their title)