Harmonica Qi

Unlike wind instruments such as the trumpet and trombone, playing the harmonica requires the blowing and drawing of air. This inhaling and exhaling against resistance develop the diaphragm, breathing and lung volume. For this reason, it is used in lung strengthening exercises.

Face Mask
Face masks provide resistance during inhale and exhale as well. This is why some people half mask. Initially, on donning a mask, it seems suffocating. But this discomfort goes away once the breath adjusts to the mask. Half-maskers never get past this discomfort zone - they just need to practice a bit more.

Xiaoyuanyuan plays cantopop classic Vast Ocean Boundless Sky. Merit points for matching harmonica and song, the one-take-one-angle shot, minimal production accoutrements, and the ambience from lighting and background.