Mount Salem play 70’s retro-doom (aka occult rock or witch rock) and, while the band’s music is the expected big sludgy stoner riffs and grooves, the songs often veer off into psychedelia. Vocalist Emily Kopplin sings in a haunted, waif-like manner and her vocals, along with the guitar riffs, are prominent in all of the songs. Kopplin also adds a church-like organ beneath the crushing riffs which serves as both additional atmosphere and a bridge between sections of the songs, rather than rising to the level of funeral doom.
The eight songs on Endless run just over 40 minutes and the disc picks up speed toward the back half of the disc. The first three songs are all stylistically similar, where bombastic, dirgy stoner riffs and thundering drums crash alongside of Emily Kopplin’s ghostly narratives and psychedelic organ. The songs start breaking from the mold with “Full Moon”, which has a slow burning atmospheric opening and this slow build kicks up into groove-based riffs with some time changes that will keep the listener engaged. “Mescaline” and “Mescaline II” are two of the strongest cuts on the disc. “Mescaline” is a shimmering and moody stoner/psychedelic instrumental which leads directly into the crunchy psychedelia of “Mescaline II”. This later number has a dense musical sound with a notable guitar line weaving beneath this sonic wall. The disc ends where it started as the guitar riffs on “Hysteria” sound like they came straight out of the Sabbath playbook and “The End” serves as a nice outro as it takes the pace down a notch with slower, brooding tempos and more prominant use of the organ.