Dodici ore ininterrotte di musica improvvisata da mattina a sera domenica scorsa in una delle sedi più coraggiose e indipendenti dell'underground artistico londinese, scandite dall'intervento a flusso continuo di oltre una trentina di musicisti, tra cui John Edwards, Jason Yarde, Phil Durrant, Sue Lynch, Adam Bohman, Neil Metcalfe, Phil Minton, Maggie Nicols, John Butcher, Pascal Marzan, Susanna Ferrar, Charlotte Keefe e Caroline Kraabel, quest'ultima tra le ideatrici e principali coordinatrici della realizzazione del progetto: 12 Hour Improvisation at The Horse Hospital.
The Horse Hospital is an artist-led, not-for-profit independent arts venue in central London. Established in 1993 by Roger K. Burton, THH has uplifted countercultural and experimental art across music, performance, film, fashion, and visual art. It has also served as a living archive of countercultural activity and 'outsider art'. As of 2025, The Horse Hospital is run by The Horse Hospital Collective. This collective has been entrusted with the responsibility of continuing, expanding upon and reaffirming The Horse Hospital’s originating vision, with a renewed focus on providing a home for DIY cultural practices. The THH Collective’s internally-directed programme runs concurrently with usage of the space by wider communities through our 'open access' scheme, as well as provision through direct hire. The Horse Hospital is supported first and foremost by the large community of artists, audiences, fans, and friends who use and cherish the space.