As far as I can tell Loeb's corners follow this logic:
He also has slower corners like hairpins, etc. but I omitted all that to keep it simple.
In practical terms this is how it applies:
|From top to bottom: left 130 short onto right 130 half-long|
left 144 tightens 130 short. green color is racing line.
If you assume this is a blind corner, the "left 144 tightens 130 short" example shows a very basic example of how handy his notes are. He knows the severity of the entry corner, how much space he has to brake, the severity of the tighter corner and its exact racing line.