noun
upbeat; syncopated beat
In music, the weak beat or off-beat, often emphasized in syncopation. Contrasts with 表拍 (おもてはく), the downbeat.
この曲は裏拍にアクセントがあって、ノリやすい。
This song has accents on the off-beats, making it easy to groove to.
ジャズでは、よく裏拍で手を叩く。
In jazz, people often clap on the off-beats.