It’s hard to map a sound. Soundwaves don’t care about borders drawn on maps, even if these involve high fences, unless they are being jammed by censorius regimes. And even then short wave radio often bounces through. Sound, perhaps even more than people’s physical bodies, finds a way. This week we consider soundworlds on the border, in the in-between, in the hope of thinking more clearly about how people shape their sense of place sonically.