Glissandro 70 is the exploratory dance-music duo of Craig Dunsmuir and Sandro Perri, both central figures in Toronto’s adventurous underground. Dunsmuir’s Kanada 70 moniker has become a touchstone for hand-made looped compositions and mutant funk, while Perri’s work (from Polmo Polpo through his solo releases and Off World) maps a wide terrain of electronic, jazz, folk and experimental forms.

The project began in 2003 as an invitation from Chicago’s Muted Tones weblog to collaborate on music that sat between analogue dub, trance, afro-beat and pop abstraction. That initial piece, an extended rework of material Dunsmuir had developed for his Kanada 70 Solo Guitarkestra, was retitled and edited for the occasion, becoming "Something", the opening cut on their acclaimed self-titled 2006 debut for Constellation, a five-song full-length subsequently fleshed out between 2003 and 2005.

20 years later, their archival follow-up G70 2: Bones of Dundasa picks up threads from that era and expands the frame. The record includes a 2005 recording of Arthur Russell’s "Lucky Cloud", newly augmented by Peter Zummo’s trombone in 2025, and a 2005 remix of "Bolan Muppets" (from the original LP) by Dan Bodan. Other tracks on Bones of Dundasa surfaced from sessions between 2010 and 2015; pieces that were created, abandoned, lost and later rediscovered. Plans once floated to evolve the project into a new iteration called Dundasa 80 were ultimately shelved, but the act of revisiting the archives in 2025 led to this carefully assembled release.

Across this period and beyond, Perri has continued to support Dunsmuir’s work; mixing and producing all three releases by Dunsmuir’s current venture, Dun-Dun Band, a project that further showcases his improvisational and polyrhythmic instincts.