- denoting or relating to a musical structure based around a sequence lasting twelve bars and typically consisting of three chords, the basic unit of much blues and rock-and-roll music十二小节的（指有十二小节, 并尤其由三个和音组成的音乐结构, 为多数布鲁斯和摇滚音乐的基本单位）。
- a song or piece of music having such a structure十二小节歌曲（或音乐）。