Sorry if I’m misunderstanding! I think you’re asking about a way to notate whi[ch type of escape motion is being made for each note. Let me know if that’s correct.
If so, what I’m saying is there is no practical value in knowing this. At least not for the reasons most people ask. We get variations on this question from time to time, and it’s usually because people are trying to play a particular phrase or to learn a certain technique. But this type of notation would not be a good way to do that - especially for dbx wrist technique.
The best way to learn most techniques is to understand the overall form and type of motion required, allowing the motor system to micromanage the motions being made. Here’s just as one of many examples I can show you:
You’ll notice that the notes on the E string have more of a USX appearance than the B and G string notes, which look more like DBX. This is not intentional, and it’s not something I can feel when playing the phrase. All I am doing here is maintaining a specific form, and moving the hand back and forth in a way that feels easy. That’s it.
Also, when we film other players doing this phrase, they don’t always appear to make the sequence of motions I’m making. In situations where no specific escape is needed - like the E string - you’ll see different motions being made when you film players.
Ergo I think for most practical purposes that people ask us about, they will not be helped by trying to imitate escape motions they read about in notation. They would be best served by knowing which technique is being used, and trying to perform that technique using general instructions for doing so.
Sorry for the confusion! When I say DBX I don’t necessarily mean the player always makes a DBX pickstroke on every note. Andy Wood doesn’t do this, for example. However his form permits him to make DBX pickstrokes when necessary. We don’t have a good word for “technique which can do DBX but doesn’t always do so”. We sometimes say “mixed escape” for this. For ultimate clarity, that’s probably how I’d describe what Andy and many other players do. The arpeggio example above is another good example of this. DBX but really only when needed.
In the Jimmy Page example, I can tell from the overall form and appearance of the motion, and the line being played that this is likely a mixed escape wrist technique. That’s really all I meant. The exact motions being made, nobody can know without Magnet type video.
Either way I think your point is mostly correct, that you just need to know what overall technique or picking style is being used to play something. Then you follow the instructions for doing that technique. There is very little practical value in trying to notate escapes for each note, even if you can see these things happening in slow motion video.
Edit: Knowing what picking style is being used, knowing what escape it is and how this influences what is being played – this is all critically important. It’s more from the macro level and not at the notation level.