1girl, backpack, bag, blue_theme, blush, breasts, dutch_angle, feet_out_of_frame, flat_cap, guitar, hair_bobbles, hair_ornament, hat, holding, holding_instrument, holding_plectrum, instrument, jewelry, kagiyama_shachou, kawashiro_nitori, key, key_necklace, large_breasts, microphone, monochrome, music, necklace, one-piece_swimsuit, open_mouth, outdoors, playing_instrument, plectrum, short_hair, sidelocks, solo, speaker, stage, stage_lights, sweat, swimsuit, touhou, tree, two_side_up