Gigan are back in 2017 with their latest album: Undulating Waves of Rainbiotic Iridescence. It’s another dose of total psychedelic sci-fi death metal mind-fuckery. Gigan is one band whose sound is very accurately described by their album titles. I first heard them in 2011 when they released Quasi-Hallucinogenic Sonic Landscapes and have been paying close attention ever since. They played Chicago’s Cobra Lounge on September 28 as part of a short run of midwest U.S. dates.