Editing Grunge (section)

=== Other instruments ===
Although other instruments are generally not included in grunge, Seattle band Gorilla created controversy by breaking the "guitars only" approach and using a 1960s-style [[Vox (musical equipment)|Vox organ]] in their group.<ref>{{cite news| url=https://archive.seattletimes.com/archive/19931119/1732607/powerful-melodic-gorilla-rises-above-a-sea-of-grunge | work=The Seattle Times | first=Cathy | last=Ragland | title=Powerful, Melodic Gorilla Rises Above A Sea Of Grunge | date=November 19, 1993}}</ref>
In 2002, [[Pearl Jam]] added a keyboard player, [[Boom Gaspar|Kenneth "Boom" Gaspar]], who played [[piano]], [[Hammond organ]], and other keyboards; the addition of a keyboardist to the band would have been "inconceivable" in the band's "grungy" early years, but it shows how a group's sound can change over time.<ref>Corbett, Bernard M. and Harkins, Thomas Edward. ''Pearl Jam FAQ: All That's Left to Know About Seattle's Most Enduring Band''. Hal Leonard Corporation, 2016</ref>