[6] Coulter has synesthesia, a neurological condition which has had a profound effect on his work, other well known synesthete artists include David Hockney, Vincent van Gogh and Joan Mitchell.
[7] In an interview with The Independent, Coulter's earliest memories of this date back to childhood, where he recalled the sound of his own heartbeat resonating pulses of colour.
[8] In June 2016, Coulter collaborated with worldwide music streaming service Deezer, where he produced a 'musical painting' for Glastonbury Festival.
He has also collaborated with Chanel, Alexander McQueen, Burberry, Christian Dior, Calvin Klein, Marc Jacobs and Byredo for Dazed.
[14] Coulter's work is owned by many notable individuals and companies such as Anne Hathaway, Elton John, Coca-Cola, Billie Eilish, Post Malone, Antoni Porowski and Hilary Weston.