Hannelore, Marten, and Faye are "The Traditional," a band you may recognize from their recent album "Melted Our Cash Register."
Marten, Faye, and Steve are "Men and Machines" and their latest album is "How to Use a Blowtorch (Yes, Faye?)"
Why did Marten and Faye release two albums about melting things?
EDIT: new band is Dora and Marten with band "Chilling Vision of the Future" and album "All the Mice Fuck You" (from the antepenultimate and penultimate panels: the last panel is empty because Yelling Bird got eaten by a hawk)