---
title: "第 21 课 · 弱起小节 · Piakno"
description: "曲子不从第一拍开始时也能数对进入点"
url: "https://piakno.com/zh-Hans/course/piano-foundations/lesson/21"
lang: "zh-Hans"
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"
---

# 弱起小节

> 曲子不从第一拍开始时也能数对进入点

- [零基础钢琴乐理主线课](https://piakno.com/zh-Hans/course/piano-foundations)
- [上一课 · 休止符：安静也占拍](https://piakno.com/zh-Hans/course/piano-foundations/lesson/20)
- [下一课 · 五指位置的整体移位](https://piakno.com/zh-Hans/course/piano-foundations/lesson/22)