A cool technique
used by guitarist
s where they bend a string
with their fretting hand
as it is being plucked/picked in order to raise the pitch
as the note decays
Here are some tips on how to do this best:
1. Bring your thumb closer to/on the top of the fretboard
and bend the string towards your thumb as it is easier to squeeze
the string towards you than pull it away and it works either way.
2. There are different levels of bends. For example bending a note one half step
would make it sound like the note one fret
above it. A whole step
would be 2 frets.
In common notation
it is shown as a small arrow
going up from the note you're meant to bend.