---
title: "第 14 课 · 低音 A 与拍号 · Piakno"
description: "认出 A3，说得出拍号上下两个数字各管什么"
url: "https://piakno.com/zh-Hans/course/piano-foundations/lesson/14"
lang: "zh-Hans"
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  en: "https://piakno.com/course/piano-foundations/lesson/14.md"
  zh-Hans: "https://piakno.com/zh-Hans/course/piano-foundations/lesson/14.md"
  zh-Hant: "https://piakno.com/zh-Hant/course/piano-foundations/lesson/14.md"
  ja: "https://piakno.com/ja/course/piano-foundations/lesson/14.md"
  ko: "https://piakno.com/ko/course/piano-foundations/lesson/14.md"
  es: "https://piakno.com/es/course/piano-foundations/lesson/14.md"
  de: "https://piakno.com/de/course/piano-foundations/lesson/14.md"
  pt-BR: "https://piakno.com/pt-BR/course/piano-foundations/lesson/14.md"
---

# 低音 A 与拍号

> 认出 A3，说得出拍号上下两个数字各管什么

- [零基础钢琴乐理主线课](https://piakno.com/zh-Hans/course/piano-foundations)
- [上一课 · 低音 B 与延音线](https://piakno.com/zh-Hans/course/piano-foundations/lesson/13)
- [下一课 · 低音 G：中央 C 下方的地带](https://piakno.com/zh-Hans/course/piano-foundations/lesson/15)