Born Spencer Linn, Mossback is an emcee and producer from Portland, OR. He is one half of the group Grim Salvo and one third of the production team ³³marrow.

Mossback, along with fellow Grim Salvo member, Sleuth, also release music as part of the progressive metal band The Odious.


That Night a Forest Grew (w/ The Odious) (2011)
Joint Ventures (w/ The Odious) (2012)
Vesica Piscis (w/ The Odious) (2019)
Dolores (w/ Grim Salvo) (2020)
Mildred (w/ Grim Salvo) (2022)
Skinwalker Social Club (2023)
Mildred Decomposed (Instrumental) (w/ Grim Salvo) (2023)

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