---
title: "Lesson 14 · A below middle C, and the time signature · Piakno"
description: "Recognize A3, and say what each of the two numbers in a time signature does"
url: "https://piakno.com/course/piano-foundations/lesson/14"
lang: "en"
alternates:
  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"
---

# A below middle C, and the time signature

> Recognize A3, and say what each of the two numbers in a time signature does

- [Piano Theory from Scratch](https://piakno.com/course/piano-foundations)
- [Previous · B below middle C, and the tie](https://piakno.com/course/piano-foundations/lesson/13)
- [Next · G below middle C: the territory downstairs](https://piakno.com/course/piano-foundations/lesson/15)