Joe Satriani uses the arm on his Ibanez Edge Trem System often; most of the time to make his signature "Satriani Scream", where he plays a harmonic near the bridge on the G-string and raises the bar. It can be heard on many songs, including "Surfing With The Alien", "The Extremist", and "Flying in a Blue Dream". This technique is used by many similar guitarists of the genre including Steve Vai, Paul Gilbert, Brian "Head" Welch and James "Munky" Schaffer of Korn, and John Petrucci of Dream Theater.