---
title: "第 21 課 · 弱起小節 · Piakno"
description: "曲子不從第一拍開始時，也能數對進入點"
url: "https://piakno.com/zh-Hant/course/piano-foundations/lesson/21"
lang: "zh-Hant"
alternates:
  en: "https://piakno.com/course/piano-foundations/lesson/21.md"
  zh-Hans: "https://piakno.com/zh-Hans/course/piano-foundations/lesson/21.md"
  zh-Hant: "https://piakno.com/zh-Hant/course/piano-foundations/lesson/21.md"
  ja: "https://piakno.com/ja/course/piano-foundations/lesson/21.md"
  ko: "https://piakno.com/ko/course/piano-foundations/lesson/21.md"
  es: "https://piakno.com/es/course/piano-foundations/lesson/21.md"
  de: "https://piakno.com/de/course/piano-foundations/lesson/21.md"
  pt-BR: "https://piakno.com/pt-BR/course/piano-foundations/lesson/21.md"
---

# 弱起小節

> 曲子不從第一拍開始時，也能數對進入點

- [零基礎鋼琴樂理主線課程](https://piakno.com/zh-Hant/course/piano-foundations)
- [上一課 · 休止符：安靜也佔拍](https://piakno.com/zh-Hant/course/piano-foundations/lesson/20)
- [下一課 · 五指位置的整體移位](https://piakno.com/zh-Hant/course/piano-foundations/lesson/22)