12+1 is a proposal put forward by Contorno Urbano: 12 artists, 12 months, one 50 square metre wall, one artistic intervention per month and one final exhibition, presenting each of the artists’ unique work. 12+1 is an open-air art gallery, one which changes each month. A unique vision which problematizes the way we exhibit urban art, and the place of these artworks in the city. Hosh is playing with colors and lights with this intervention that mixes painting and installation: when nighfalls, the mural becomes a lights canvas thanks to a LEDs circuit that lights up the work of art and appeals glazes.