¥800
App Store で開く
iPhone / iPad 対応
12.0MB
年齢4+
Circle o Fifths: Guitar+Pianoはどんなアプリ？
Circle o Fifths: Guitar+Pianoは、音楽理論を実際の演奏に結びつけて学べる練習用アプリです。
ギターとピアノの二つの楽器を切り替えて、全キーに対応した和音の構成や関係性を確認できます。スケールごとに色分けされた指使いが画面上に表示されるため、複雑なコード進行やスケール構造を視覚的に把握できます。独自のフレーズ集からブルースやジャズといったジャンル別のリフを選んで練習する機能も含まれています。
自分の曲を作りたい作曲家や、特定のキーでの演奏に自信をつけたい楽器奏者に合っています。コードの転調を即座に確認しながら練習を進められるため、理論を学びながら楽曲制作の幅を広げたい場面で役立ちます。
アノアプリによる紹介文です。デベロッパー公式の説明はApp Storeでご確認いただけます。
Circle o Fifths: Guitar+Pianoの注目ポイント
ギターとピアノの切り替え
楽器の種類を瞬時に切り替えて練習に取り組めます。選んだ楽器に合わせて音色や図面が自動で変化するため、複数の楽器を横断して基礎を固めたい場面で便利です。
全キーに対応した和音の把握
全キーでの和音構成や関係性を確認する仕組みが入っています。移調の際に音がどう変化するかを視覚的に把握し、理論に基づいた演奏を身につけられます。
色分けされたスケールの指使い
スケールごとに色が割り振られた指の動きを画面上で確認できます。複雑な構造を視覚的に捉えながら、特定のキーでの演奏に自信をつけたい際に頼りになります。
ジャンル別のフレーズ集
ブルースやジャズなどジャンルごとに分類されたフレーズから選んで練習できます。特定のスタイルに合わせたリフを一つずつ確認しながら、自分の演奏を磨けます。
価格履歴
現在は800円です。過去61日間で最も長く続いた500円より高くなっています。この間に1回値上げされ、値下げはありませんでした。
アノアプリが独自に収集した価格履歴をもとに分析しています。
- 買い時判定
- 通常価格より高め
- 記録期間
- 61日
- 最頻価格
- ¥500
- 記録上の最安値
- ¥500
価格更新履歴
| 日付 | 価格 |
|---|---|
| 2026-08-29 | ¥800 |
| 2026-07-21 | ¥500 |
ランキング推移
ミュージック（有料）：最終圏内 95位（2026年08月27日）
ユーザーレビュー （当サイト投稿）
まだレビューがありません。最初のレビューを書いてみましょう。
アプリ更新履歴 活発に更新中
Ver 2.2.3 2026-09-16
Visual polish
Ver 2.2.2 2026-09-06
Tuning fixes — and more of the neck.
• Guitar notes now stay in tune all the way up the neck. Scale runs
no longer drift sharp as they climb.
• Bends and slides in the Licks Library now land right on pitch.
• Scale shapes now repeat up the neck — every CAGED shape shows at
each octave that fits, instead of just the lowest one.
Thanks for playing! Ideas or requests? We'd love to hear them.
• Guitar notes now stay in tune all the way up the neck. Scale runs
no longer drift sharp as they climb.
• Bends and slides in the Licks Library now land right on pitch.
• Scale shapes now repeat up the neck — every CAGED shape shows at
each octave that fits, instead of just the lowest one.
Thanks for playing! Ideas or requests? We'd love to hear them.
Ver 2.2.1 2026-08-24
The biggest update yet — a whole new Scales tab.
• See any scale on the guitar fretboard or piano keyboard, color-coded by degree. Guitarists get the five CAGED shapes, full-neck patterns, and a Licks Library of ready-made riffs, now including Metal and Bluegrass.
• Guitar chord charts now flip vertical or horizontal — whichever you read faster.
• Progressions follow along — watch the current chord and what's coming next as your track plays.
• Refreshed in-app help, cleaner controls, and a bunch of fixes.
*Fixed in 2.2.1: guitar chords in the Progressions tab now play at the correct pitch — they were sounding a major third sharp. Thanks to the player who reported it!
Thanks for playing! Ideas or requests? We'd love to hear them.
• See any scale on the guitar fretboard or piano keyboard, color-coded by degree. Guitarists get the five CAGED shapes, full-neck patterns, and a Licks Library of ready-made riffs, now including Metal and Bluegrass.
• Guitar chord charts now flip vertical or horizontal — whichever you read faster.
• Progressions follow along — watch the current chord and what's coming next as your track plays.
• Refreshed in-app help, cleaner controls, and a bunch of fixes.
*Fixed in 2.2.1: guitar chords in the Progressions tab now play at the correct pitch — they were sounding a major third sharp. Thanks to the player who reported it!
Thanks for playing! Ideas or requests? We'd love to hear them.
Ver 2.2 2026-08-21
The biggest update yet — a whole new Scales tab.
• Scales tab — see any scale on the guitar fretboard or piano keyboard, color-coded by degree. Guitarists get the five CAGED shapes, full-neck patterns, and a Licks Library of ready-made riffs, now including Metal and Bluegrass.
• Guitar chord charts now flip vertical or horizontal — whichever you read faster.
• Progressions follow along — watch the current chord and what's coming next as your track plays.
• Refreshed in-app help, cleaner controls, and a bunch of fixes.
Thanks for playing! Ideas or requests? We'd love to hear them.
• Scales tab — see any scale on the guitar fretboard or piano keyboard, color-coded by degree. Guitarists get the five CAGED shapes, full-neck patterns, and a Licks Library of ready-made riffs, now including Metal and Bluegrass.
• Guitar chord charts now flip vertical or horizontal — whichever you read faster.
• Progressions follow along — watch the current chord and what's coming next as your track plays.
• Refreshed in-app help, cleaner controls, and a bunch of fixes.
Thanks for playing! Ideas or requests? We'd love to hear them.
Ver 2.1.1 2026-07-28
Polishing a few things.
Ver 2.1 2026-07-14
Make Circle o Fifths yours — this update is all about personalization and polish:
• 21 color themes — tap the palette to redress the entire app; a few are suspiciously reminiscent of your favorite films, albums, and bands.
• Themed chord charts — the guitar and piano chord diagrams match your chosen theme and look crisper than ever.
• New key badge — the center of the wheel now shows your current major and relative-minor key, plus its key signature, at a glance.
• 21 color themes — tap the palette to redress the entire app; a few are suspiciously reminiscent of your favorite films, albums, and bands.
• Themed chord charts — the guitar and piano chord diagrams match your chosen theme and look crisper than ever.
• New key badge — the center of the wheel now shows your current major and relative-minor key, plus its key signature, at a glance.