Re: vibratoOn 09 Apr 2008, "Robert Riddle" <captinlogic@gmail . com > wrote in
alt.guitar.beginner:
> It this done by wiggling the string up and down?
What do you mean "up and down"?
Vibrato is created by varying the length and/or tension on the
string. Think what happens when you turn the tuning pegs - the pitch
goes up or down. If you could turn the knob fast and accurately
enough, you could produce vibrato. The most common way to produce a
similar but more controllable effect by pushing the string along the
length of (that is, parallel to) the fret. This will slightly
increase the distance between the bridge and that string's
point-of-contact with the fret and also increase the string's
tension. The pitch will go up. If you cyclically bend the string
then relax it to it's original position, you'll get vibrato,
similar to a singer's.
> I've heard that it's done by pressure variance on the string,
It's not usually done like that because there isn't enough distance
between the top of the fret and the fingerboard for the string to
flex enough to produce an effect. Also, it's physically awkward. I
believe that technique is used on sitar, though.
Classical guitarists also have another method of producing vibrato -
they wiggle the string in the direction of its length. That is,
while gripping the, you slightly move your hand back and forth first
toward the bridge, then toward the nut, perpendicular to the fret.
Classical (nylon stringed) guitars have very flexible, stretchy
strings, so this movement will noticeably, audibly vary the pitch.
It doesn't work as well on steel strings, but it's still good for a
subtle vibrato with a different character than the
parallel-to-the-fret technique.