Sweet Adelines: 6 p.m., Sterling High School choir room. Friday, Jan. 30Cardio Drumming: 9 a.m., Heritage Center. Heritage Center Dance Group: 6:30 p.m., Heritage Center. Monday, Feb. 2Little Readers: 9:30 to 10:15 a.m., Sterling Public Library. Sterling High School Boys Basketball vs. Weld Central: 7 p.m., Wally Post Gym.