Vampire Blues is the duo of guitar player Jon Collin (Serfs, The Whole Voyald) and harmonium player Jon Marshall (The Hunter Gracchus, Peril Hill). They have a pretty special tape out on Blackest Rainbow. We can't recommend them highly enough.
The Fifth Band is the gobsmacking trio of Stephen Lawrie (The Telescopes), Bridget Hayden (Vibracathedral Orchestra) and Kryszt Hladowski (The Family Elan). Oof.
A Wake is the duo of Nick Mitchell and Fliss Horrocks who also play in Beach Fuzz. This will actually probably end-up being a Beach Fuzz performance - this incarnation's first inside the UK.