Thee Silver Mt. Zion Memorial Orchestra is a Canadian post-rock band that formed in 1999, originating from Montreal, Quebec. Variations of the name used on the band's releases include A Silver Mt. Zion, The Silver Mt. Zion Memorial Orchestra & Tra-La-La Band, The Silver Mt. Zion Memorial Orchestra and Tra-La-La Band with Choir and Thee Silver Mountain Reveries; the group uses the shorthand SMZ and its name is most often simplified to Silver Mt. Zion. The group was founded by Godspeed You! Black Emperor leader Efrim Menuck, who was joined by fellow Godspeed members Sophie Trudeau and Thierry Amar. Aside from these core members, Silver Mt. Zion has undergone almost yearly personnel changes, evolving by stages from a mostly instrumental trio at the time of its first recordings into an eight-piece group, and then in 2008 into a strongly vocal quintet.

Post-rock is a form of experimental rock characterized by a focus on exploring textures and timbres, as well as non-rock styles, with less emphasis on conventional song structures or riffs. Post-rock artists typically combine rock instrumentation with electronics. The genre emerged within the indie and underground music scene of the 1980s and early 1990s. However, due to its abandonment of rock conventions, it began to increasingly show little resemblance musically to conventional indie rock at the time, borrowing instead from diverse sources including ambient, electronica, jazz, krautrock, dub, and minimalist classical, with these influences also being pivotal for the style of ambient pop.