Cath Roberts is a musician, artist and organiser whose work explores free improvisation, composition and the music at their meeting point. The primary outlet for this is the band Sloth Racket, formed in 2015 by Cath on baritone saxophone and compositions, which has toured widely and released several albums. More recently, improvisation using live electronics and objects has led to a solo release plus the beginning of several new collaborations.

Cath has a long-standing duo with guitarist Anton Hunter (Ripsaw Catfish), as well as regular collaborations with Tullis Rennie, Benedict Taylor, Graham Dunning, Bill Thompson and others, and bandmate duties in several groups including Alex Ward’s Items 10 and 7, Madwort Sax Quartet and Article XI.

As an organiser, Cath has co-run LUME with Dee Byrne since 2013, producing concerts, tours and festivals and releasing music on their offshoot label Luminous. Tom Ward, Colin Webster and Cath organise BRÅK, an improvised music series taking place in Brockley, South East London. Cath’s visual work can be seen on many Luminous releases, Sloth Racket tour flyers and LUME publicity materials, and appeared in 2021 in the form of a giant, fragmented graphic score created for a hcmf// commission, And then the next thing you know.

Educational work has included improvisation workshops and courses for Aldeburgh Young Musicians (Britten Pears Arts), Trinity Laban, and various festivals, as well as guest lecturing on improvisation and composition. Cath currently leads the Experimental Ensemble at City, University of London.

(Pronouns: she/they)

– June 2023.

Current CV (last updated February 2023)


The best way to contact me is email: contact [at] cathrobots.co.uk

You can also sign up to my (roughly) quarterly email newsletter.

My social media use is patchy at the moment (Spring 2023), but…

  • Follow my Instagram account for occasional updates: @cathrobots
  • Find me on Mastodon: @cathrobots.
  • My Twitter account is no more!