Quarto Mundo is a listening room in Porto which provides an environment where music can be experienced on a high fidelity analogue system. Founded in 2019 by Miguel Guedes and James Keating, Quarto Mundo takes its name from Jon Hassell`s Fourth World concept and aims to create a “deep listening” space that brings “deep listeners” together. The duo hold listening sessions every Friday and have shared with us a recording from one of their favourite evenings.