A hefty offering of emotionally fraught core music Shanghai’s Return to Sender returns to their home turf for a special No Stage outing at Yuyintang. Hoping to ‘unlock the knot in your heart and help you move through the turbid current,’ the post-hardcore band taps into both the muscular and tender aspects of core music with whiplash-inducing flair, injecting their sound with shades of post-rock, R&B, emo pop, and then some. One moment you’re taken aback by the (effective) use of auto-tune, the next you’re being tossed up against the wall by razor-sharp guitar riffs and guttural screams.