On its well received fifth album, "Acidity", Kekal used double bass drum blasts and saw the band incorporating styles such as electronic, black metal, progressive metal, progressive rock, classic rock, indie rock, psychedelic rock, trip hop, jazz, ambient, and avant-garde. Jeff Arwadi responded to the "avant-garde" label in an interview with Ultimate Metal.com: "For us, avant-garde is not a classification of music. It is a state of being, a state of becoming... ...once your music can be classified easily, I don't think the word progressive or avant-garde fits. So that's why we mention in our bio that 'avant-garde' is an ideal state for us, and not a classification."