While walking music is always a source of comfort, of joy, of rejuvenation and we all have our favorites. I always enjoy something not tainted by modernism, something more 'appropriate' to the effort, 'properly' medieval. My choice is something not Spanish though occasionally yes Jordi Savall and Montserrat Figueras both diehard Catalans - no politics intended - but the music so moving and so Camino. With musicians from Catalunya, Spain, Morocco, Tunisia, Egypt, Israel, Turkey, and the Balkans a truly international mix. Try this and find more on your own,