---
title: "第 54 课 · 三度实战 · Piakno"
description: "零错误弹完《三度练习》，双音齐落"
url: "https://piakno.com/zh-Hans/course/piano-foundations/lesson/54"
lang: "zh-Hans"
alternates:
  en: "https://piakno.com/course/piano-foundations/lesson/54.md"
  zh-Hans: "https://piakno.com/zh-Hans/course/piano-foundations/lesson/54.md"
  zh-Hant: "https://piakno.com/zh-Hant/course/piano-foundations/lesson/54.md"
  ja: "https://piakno.com/ja/course/piano-foundations/lesson/54.md"
  ko: "https://piakno.com/ko/course/piano-foundations/lesson/54.md"
  es: "https://piakno.com/es/course/piano-foundations/lesson/54.md"
  de: "https://piakno.com/de/course/piano-foundations/lesson/54.md"
  pt-BR: "https://piakno.com/pt-BR/course/piano-foundations/lesson/54.md"
---

# 三度实战

> 零错误弹完《三度练习》，双音齐落

- [零基础钢琴乐理主线课](https://piakno.com/zh-Hans/course/piano-foundations)
- [上一课 · 四度与五度](https://piakno.com/zh-Hans/course/piano-foundations/lesson/53)
- [下一课 · 五度实战](https://piakno.com/zh-Hans/course/piano-foundations/lesson/55)
- [本课曲谱](https://piakno.com/zh-Hans/piece/sandu)