 The "Unsung Division EP" consisted of songs originally written for the 2015 album, but removed as the "some compositions turned out to be a bit out-of-place with the rest of the album's general concept," according to Arwadi.In 2017, the band announced a new album for 2018, entitled "Deeper Underground".Although mainly known as a progressive metal and avant-garde or experimental metal band, Kekal has stylistic origins in extreme metal, particularly black metal, but even with its debut album the band demonstrated a unique style.