metronome
US /ˈmet.rə.noʊm/
UK /ˈmet.rə.noʊm/

1.
节拍器
a device used by musicians that marks time at a selected rate by giving a regular tick
:
•
The pianist used a metronome to keep a steady tempo.
钢琴家使用节拍器来保持稳定的节奏。
•
Set the metronome to 120 beats per minute.
将节拍器设置为每分钟120拍。