"Some tracks on "In Decay" are slow-tempo, calm-vibe dance songs, while others are extraterrestrial psychedelic cuts similar to the works of Tangerine Dream and Popol Vuh.Patric Fallon of "XLR8R" highlighted "In Decay"'s experimentation absent from what normally comes from the Com Truise project; examples include the minimal music structure of "Yxes" and the use of live bass guitar on the songs "Alfa Beach" and "Dreambender."