Paiste Gong Master Sven Meier demonstrates how to strike and a seven-foot-wide gong for maximum impact in a Youtube video by Wind Chimes Australia. After a few light taps to the middle of the instrument it bellows out with a dark and unsettling timbre that seems to resonate with doom. During the short demonstration Meier uses a few different techniques, extracting a range of sounds from the massive 80″ nickel silver gong. For more explorations into the sounds and vibrations produced by XXL gong check out these videos posted on Kottke.
Original source: https://www.thisiscolossal.com/2019/07/gong-sounds/