鉄琴

1. Origins, structure, and basic meaning

• Structure: Written 鉄琴 and read てっきん, it is a percussion instrument with tuned metal bars struck to produce clear pitches.
• Basic usage: It is played lightly by a child in a music room and heard ringing clearly across a stage.

2. Common pitfalls and similar expressions

• Metal bars and pitched sound
  • The defining feature is an arranged set of struck metal bars, not simply any instrument made of iron.