jazz jack, marche lorraine (umamusume), umamusume, commentary request, lowres, 1girl, animal ears, bow, brown hair, closed mouth, ear covers, ears through headwear, hair between eyes, hand puppet, hat, holding, holding instrument, horse ears, horse girl, instrument, looking at viewer, mismatched ear covers, open mouth, otamatone, puppet, purple eyes, purple sailor collar, purple shirt, sailor collar, sailor shirt, school uniform, shirt, short hair, solo, tracen school uniform