David Tkach played bass in the Winnipeg instrumental trio, Giant Sons, with Robbie Richardson and David Guillas. They wrote "Repairing the Damaged Beard," which went on to be adapted as Propagandhi's "Tertium Non Datur." Tkach currently plays in Fulfilment and Zeta II Reticuli.
Listen to "Repairing the Damaged Beard," here: https://www.youtube.com/watch?v=eBB0ZhHcdvk
Listen to Fulfilment: https://fulfilment.bandcamp.com/
Listen to Zeta II Reticuli: https://zetaiireticuli.bandcamp.com/album/voyager