¥800
App Store で開く
iPhone / iPad 対応
13.1MB
年齢4+
Circle o Fifths: Guitar+Pianoはどんなアプリ？
Circle o Fifths: Guitar+Pianoは、ギターやピアノの練習に役立つ音楽理論の学習ツールです。
楽器の種類に合わせて和音の構成やスケールの関係を視覚的に確認できます。度数ごとに色が分かれているため、指の動きを直感的に把握できる仕組みです。ブルースやジャズなど特定のジャンルに合わせたフレーズ集も選べます。独自の楽曲制作機能では、ドラムの伴奏を加えながら自分の曲を組み立てて演奏を聴くこともできます。
コードの転調やスケールの練習を、楽器の形に合わせた図面で確認したい場面に合っています。特定のキーで楽曲を書き上げたい時や、即興演奏の練習に取り入れたい時に頼りになります。
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替機能
練習する楽器に合わせて画面の表示を切り替えられます。ギターの弦やピアノの鍵盤に合わせた図面が瞬時に切り替わるので、楽器の特性を意識しながら基礎を固められます。
和音の構成と関係性の確認
全キーに対応した和音の成り立ちが視覚的にわかります。特定のキーで演奏する際に、各コードがどのように関連しているかを把握しながら練習を進められます。
度数に応じた色分けによる指使いの把握
スケールの度数ごとに色が割り当てられているため、指の動きを直感的に捉えられます。視覚的な情報を頼りに、複雑なポジションの移動もスムーズにこなせます。
ジャンル別のフレーズライブラリ
ブルースやジャズなど特定のスタイルに合わせたフレーズ集が揃っています。自分の目指す音楽ジャンルに合わせて、実用的なリフを一つずつ確認しながら習得できます。
価格履歴
現在は800円です。過去106日間で最も長く続いた価格と同じです。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
- 記録期間
- 106日
- 最頻価格
- ¥800
- 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11月03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 3.0 2026-11-04
Your practice tool just became a band.
Write whole songs with verses, choruses and bridges, then add a drummer who never rushes. Head to Scales to jam over your own chords, or tap Solo and let the app improvise something new every time. Send a song to a friend as an audio file, and tap in your tempo instead of guessing it.
Progressions got a tidy-up too: hold a chord to move or remove it, and the picker stays out of the way until you need it.
Write whole songs with verses, choruses and bridges, then add a drummer who never rushes. Head to Scales to jam over your own chords, or tap Solo and let the app improvise something new every time. Send a song to a friend as an audio file, and tap in your tempo instead of guessing it.
Progressions got a tidy-up too: hold a chord to move or remove it, and the picker stays out of the way until you need it.
Ver 2.2.6 2026-10-13
Just some polish in this one.
Ver 2.2.5 2026-10-12
We polished the frets. And the keys. Mostly the screenshots, honestly.
Ver 2.2.4 2026-09-22
Just some polish in this one.
Thanks for playing! Ideas or requests? We'd love to hear them.
Thanks for playing! Ideas or requests? We'd love to hear them.
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.