The only thing (almost) nobody practices...and they should!

Buco

I thought you can see examples of both on the J'attendrai film? He would move chords left/right and single notes up and down.

wim

Odd, that's not what I see in the J'attendrai video, and not what it sounds like either.

I see/hear what's described above as "vertical", although he does hold his hand at quite an angle so it looks more "diagonal" than a vibrato like, say, Stochelo's.

Buco

Yes it looks more diagonal but I think he's moving the string up/down primarily. Maybe in addition to some sideways (or perhaps circular?) motion.

When he's putting vibrato over the chords in the intro, he's clearly moving sideways (are we calling that horizontal?). But that's not what I see when he's soloing.

Scoredog

Teddy,

so that would be for lack of a better term "classical guitar vibrato" though obviously the vibrato is faster?

pdg

I think most people use the term "horizontal vibrato" to refer to vibrato that moves the string along the direction of the string. And the term "vertical vibrato" to mean any vibrato technique that moves the string perpendicular to the string (as in the direction of string bends).