Dive bomb is a guitar technique in which the vibrato bar is used to rapidly lower the pitch of a note, creating a sound considered to be similar to a bomb dropping. One of the most recognized pioneers of this technique is Jimi Hendrix. Other notable musicians who are widely known for using this technique are Eddie Van Halen, Brian May, Joe Satriani and Tom Scholz of Boston. Some guitarists, such as K.K. Downing, Glenn Tipton, Jeff Hanneman and Dimebag Darrell have been known to use a variation of this technique in which a harmonic, most commonly a pinch harmonic, is used instead of a normal fretted or open note creating a sound arguably closer to that of a bomb due to the squealing sound created by the harmonic.