Many people who exercise need good music to get themselves through their workout.But in South Korea, their choice of music had been reduced under new COVID-19 rules.The country has increased social distancing and travel restrictions to halt the spread of the coronavirus.Now, South Korea has added a requirement that gyms must not play music that is too fast.The government set a limit of 120 beats per minute. Gyms will not be able to play faster music during group exercises.Health officials say the measure is meant to prevent breathing too quickly or getting sweat on other people.They wanted to avoid having to close businesses completely, as they have done earlier during the coronavirus health crisis.Opposition lawmakers, who called it "nonsense," have made fun of the rule.Gym owners see the rules as ineffective or unrealistic.Kang Hyun-ku is an owner of a gym in northern Seoul. He listens to fast K-pop songs each morning.