---
title: "楽典リファレンス · Piakno"
description: "中央のドはどこか、拍子記号の読み方、属七の和音とは何か――コースで扱う概念を一問一答の形に分解しました。各項目は詳しく解説しているレッスンにリンクしています。"
url: "https://piakno.com/ja/theory"
lang: "ja"
alternates:
  en: "https://piakno.com/theory.md"
  zh-Hans: "https://piakno.com/zh-Hans/theory.md"
  zh-Hant: "https://piakno.com/zh-Hant/theory.md"
  ja: "https://piakno.com/ja/theory.md"
  ko: "https://piakno.com/ko/theory.md"
  es: "https://piakno.com/es/theory.md"
  de: "https://piakno.com/de/theory.md"
  pt-BR: "https://piakno.com/pt-BR/theory.md"
---

# 楽典リファレンス

> 中央のドはどこか、拍子記号の読み方、属七の和音とは何か――コースで扱う概念を一問一答の形に分解しました。各項目は詳しく解説しているレッスンにリンクしています。

- [中央のド](https://piakno.com/ja/theory/middle-c)
- [ト音記号とヘ音記号](https://piakno.com/ja/theory/treble-and-bass-clef)
- [加線とオクターブ記号8va](https://piakno.com/ja/theory/ledger-lines-and-octave-signs)
- [シャープ・フラット・ナチュラル](https://piakno.com/ja/theory/sharps-and-flats)
- [反復記号](https://piakno.com/ja/theory/repeat-signs)
- [音符の長さ(音価)](https://piakno.com/ja/theory/note-values)
- [拍子記号](https://piakno.com/ja/theory/time-signature)
- [休符](https://piakno.com/ja/theory/rests)
- [付点音符](https://piakno.com/ja/theory/dotted-notes)
- [3連符](https://piakno.com/ja/theory/triplets)
- [6/8拍子](https://piakno.com/ja/theory/compound-time)
- [全音と半音](https://piakno.com/ja/theory/whole-and-half-steps)
- [調号](https://piakno.com/ja/theory/key-signature)
- [五度圏](https://piakno.com/ja/theory/circle-of-fifths)
- [短音階](https://piakno.com/ja/theory/minor-scale)
- [モード（旋法）](https://piakno.com/ja/theory/modes)
- [ペンタトニックとブルース・スケール](https://piakno.com/ja/theory/pentatonic-and-blues-scales)
- [音程](https://piakno.com/ja/theory/intervals)
- [長三和音と短三和音](https://piakno.com/ja/theory/major-and-minor-triads)
- [和音の転回](https://piakno.com/ja/theory/chord-inversions)
- [ローマ数字](https://piakno.com/ja/theory/roman-numerals)
- [和音の機能](https://piakno.com/ja/theory/harmonic-function)
- [属七の和音](https://piakno.com/ja/theory/dominant-seventh)
- [七の和音](https://piakno.com/ja/theory/seventh-chords)
- [終止形](https://piakno.com/ja/theory/cadences)
- [数字付きバス](https://piakno.com/ja/theory/figured-bass)
- [副属和音](https://piakno.com/ja/theory/secondary-dominants)
- [コードネーム](https://piakno.com/ja/theory/chord-symbols)
- [ii–V–I進行](https://piakno.com/ja/theory/ii-v-i)
- [テンションコード](https://piakno.com/ja/theory/extended-chords)
- [裏コード](https://piakno.com/ja/theory/tritone-substitution)
- [借用和音](https://piakno.com/ja/theory/borrowed-chords)
- [ポップスのコード進行](https://piakno.com/ja/theory/pop-chord-progressions)
- [12小節ブルース](https://piakno.com/ja/theory/twelve-bar-blues)
- [AABA形式](https://piakno.com/ja/theory/song-form)
- [ピアノの指番号](https://piakno.com/ja/theory/piano-fingering)
- [指くぐり（親指くぐり）](https://piakno.com/ja/theory/thumb-under)
- [ダンパーペダル（サステインペダル）](https://piakno.com/ja/theory/sustain-pedal)
- [伴奏パターン](https://piakno.com/ja/theory/accompaniment-patterns)