noun
vertical line; vertical bar; upright; note stem (music)
Refers to a vertical stroke or bar in writing, diagrams, or music notation. In music, it specifically means the stem of a note.
See also: 横棒
この図では、縦棒が時間の経過を表している。
In this diagram, the vertical bars represent the passage of time.
楽譜で、四分音符の縦棒は右側に書く。
In sheet music, the stem of a quarter note is written on the right side.