The portion of a 轨 in which all the 乐器 drop out except the drums Using two copies of the same 录 DJs often extend or 循环 these portions to 形（曲）式 the 节奏 基础 of new 轨道 Often used to 描述 the variety of 乐 that make 用 of breakbeats e g HipHop TripHop and 鼓 'n' 贝斯

源 – Cox C and Warner D 2004 為耳/音频 Culture Readings in 现代 樂/乐 连续统一