drum·beat 
/ˈdrʌmˌbi:t/ noun
plural drum·beats /ˈdrʌmˌbi:t/ noun [count] : the sound made by beating a drum
▪ I could hear the drumbeat of a parade down the street. ▪ hard and fast drumbeats ▪ a rock-and-roll drumbeat — often used figuratively ▪ The constant drumbeat for better working conditions [=the constant effort and complaints from people who demanded better working conditions] finally made a difference. ▪ The drumbeat of opposition has increased in recent months. ▪ We have been subjected to a steady drumbeat [=barrage] of bad news.
▪ I could hear the drumbeat of a parade down the street. ▪ hard and fast drumbeats ▪ a rock-and-roll drumbeat — often used figuratively ▪ The constant drumbeat for better working conditions [=the constant effort and complaints from people who demanded better working conditions] finally made a difference. ▪ The drumbeat of opposition has increased in recent months. ▪ We have been subjected to a steady drumbeat [=barrage] of bad news.
