Vibrato arm bends
The note is picked, then the whammy bar is raised and lowered to the pitches shown in brackets.
Scoop & doop
A capo creates a new nut, so the above example has the guitar’s ‘literal’ 5th fret now as the 3rd fret.
Scoop - depress the bar just before striking the note and release. Doop - lower the bar slightly after picking note.
Note sustained, then the vib is depressed to slack. Square bracket used if a long-held note has new articulation applied.
Sound the note and ‘flick’ the tremolo bar with picking hand so it ‘quivers’. Results in a ‘gargling’ sound!