There appear to be at least four groups with the name Slack.
(1) A project between Jenny Toomey (Tsunami, Grenadine, Liquorice) and Dan Littleton (The Hated, Ida). Their releases include the "Bates Stamp" cassette (from the "Tool Kit" series) and one song on the Neapolitan Metropolitan 3x7" box set, both released by Simple Machines.
(2) A band from Tennessee. The photograph, "similar artists," and most tags currently refer to this band.
(3) A band from Oregon. Late-80s Reed College. Albums are Bigger Than Breakfast…
Your suggestion has been successfully submitted.