The members of Orquesta Reusónica Trio Rocco Papía (left), Antonio Sánchez Barranco (centre) and Xavi Lozano (right).

These musicians are rescuing rubbish to create new instruments

The Barcelona-based group defines their sound as “world jazz.” But then you realise than the 'guitarist' is playing a surfboard fitted with strings and the percussionist is playing on a plastic jug filled with water.