勘所

1. Origins, structure, and basic meaning

• Structure: 勘所, read かんどころ, denotes the knack or essential point for doing something well.
• Basic usage: In 先生は演奏の勘所を短い言葉で教えた。, the teacher explained the key to the performance in a few words.

2. Common pitfalls and similar expressions

• A knack, not a venue
  • 演奏の勘所 is the knack needed to perform well, not the performance venue. The final 所 is not a literal physical place here.