Jessica Moss is best known for playing violin and singing backing vocals in the Canadian post-rock band A Silver Mt. Zion since 2001, and is a founding member of Black Ox Orkestar. In addition, Moss has also been a guest player on many albums produced in Montreal and Toronto, including albums by Frankie Sparo, Arcade Fire, and Broken Social Scene. Moss' earliest known project was playing violin in the Montreal alt-rock band Fidget, which she joined in 1995 and left in 1997. She plays regularly in local Arabic and Balkan music ensembles. In addition, she has toured with the Geraldine Fibbers, and was production coordinator for the Montreal film collective Automatic Vaudeville, to which she also contributed music and acting to numerous productions. She began playing the violin when she was five. She is also known to create illuminated boxes, metal flowers and figurines, wristbands, and soundtracks for film. Moss is part owner of Local 23, a shop in the Mile End district that "specializes in carefully chosen vintage clothing and the freshest works of over 30 Montreal artists," and stocks "an eclectic collection of books, local music, and assorted curiosities."