Final answer:
In guitar techniques, a "bend" refers to the act of bending a string to change the pitch of the note being played. This is done by stretching or releasing the string to alter its tension and frequency of vibrations.
Step-by-step explanation:
In guitar techniques, a "bend" refers to the act of bending a guitar string upwards or downwards to change the pitch of the note being played. When a guitarist performs a bend, they pull or push the string to stretch it, causing an increase or decrease in tension. This change in tension alters the frequency of vibrations in the string, resulting in a higher or lower pitch.
For example, if a guitarist bends a string upward, they are increasing the tension and raising the pitch of the note. Conversely, if they bend the string downward, they are decreasing the tension and lowering the pitch of the note.