As the circular simplicity of their name suggests, O. are a true self-contained unit. They formed in London during lockdown, when Joe and Tash – both veterans of a string of London ensembles – found themselves in a bubble together. When they started jamming, it was with no preconceptions: don’t overthink it, just play and see what happens. Before long, though, they were augmenting live instruments with effects – Joe routing his saxophone through a pedal board, Tash treating her drums with reverb and delay. As their sound grew and grew, it gradually became clear there wouldn’t be space for anyone else.

O. played their first show at Brixton Windmill, and the venue’s booker Tim Perry invited them back to support Black Midi. Immediately after their set, Black Midi’s Morgan Simpson invited them out on tour around the UK and Europe – a true trial by fire. “I think our fifth gig was at Alexandra Palace – it was terrifying,” remembers Tash. “But the main thing we learned was that we can be as weird as we want to be. Black Midi’s whole approach is that it’s OK to be playful. We both really liked that, because there's a playfulness to our music, too.”