Circle of Fifths Pro
In-app purchases
Everyone
info
100+
Downloads
About this app
Circle of Fifths Pro is a clear, modern reference tool for keys, chords, scales, and harmony.
Designed for musicians, students, and teachers, it visualises how music fits together — showing key signatures, chord families, modes, and functional harmony with ease.
Whether you're composing, improvising, studying theory, or teaching, Circle of Fifths Pro gives you a fast, intuitive way to explore the structure of Western music.
🎼 Keys & Harmony Reference
All 12 major and minor keys
Key signatures and accidentals
Relative minors, neighbors, and functional relationships
Tonic, subdominant, and dominant families
🎹 Diatonic Chords & Progressions
Diatonic chords for every key
Chord relationships within a scale
Common progressions and harmonic movement
🎵 Modes & Scales (Ionian → Locrian)
Modal patterns and scale tones
Side‑by‑side mode comparison
How modes relate to each key
🔍 Advanced Theory Tools (Pro)
Secondary dominants
Pivot chords
Modulation paths
Functional harmony overlays
Animated transitions for clearer understanding
🎧 Built for Musicians
Clean, minimal interface
Fast, intuitive interactions
Designed for composing and teaching
Works offline — no ads, no tracking, no data collection
⚙️ Improved Settings & UX
Settings update instantly in the UI
Panel closes naturally — tap outside or tap the button again
Smoother navigation and more responsive controls
🌍 Now Supporting 29 Languages
Circle of Fifths Pro now includes full support for Traditional Chinese, bringing the total to 29 languages.
The app automatically adapts to your device language for a more natural, global experience.
📚 Perfect For
Music students
Teachers and educators
Composers and arrangers
Guitarists, pianists, producers
Anyone exploring harmony and musical structure
🌟 A Modern Circle of Fifths
Circle of Fifths Pro combines a beautifully designed interface with a modern theory engine to make harmony feel natural, visual, and easy to navigate. Every feature is crafted to support real musical understanding — from beginners exploring keys to advanced musicians working with modulation and functional harmony.
Designed for musicians, students, and teachers, it visualises how music fits together — showing key signatures, chord families, modes, and functional harmony with ease.
Whether you're composing, improvising, studying theory, or teaching, Circle of Fifths Pro gives you a fast, intuitive way to explore the structure of Western music.
🎼 Keys & Harmony Reference
All 12 major and minor keys
Key signatures and accidentals
Relative minors, neighbors, and functional relationships
Tonic, subdominant, and dominant families
🎹 Diatonic Chords & Progressions
Diatonic chords for every key
Chord relationships within a scale
Common progressions and harmonic movement
🎵 Modes & Scales (Ionian → Locrian)
Modal patterns and scale tones
Side‑by‑side mode comparison
How modes relate to each key
🔍 Advanced Theory Tools (Pro)
Secondary dominants
Pivot chords
Modulation paths
Functional harmony overlays
Animated transitions for clearer understanding
🎧 Built for Musicians
Clean, minimal interface
Fast, intuitive interactions
Designed for composing and teaching
Works offline — no ads, no tracking, no data collection
⚙️ Improved Settings & UX
Settings update instantly in the UI
Panel closes naturally — tap outside or tap the button again
Smoother navigation and more responsive controls
🌍 Now Supporting 29 Languages
Circle of Fifths Pro now includes full support for Traditional Chinese, bringing the total to 29 languages.
The app automatically adapts to your device language for a more natural, global experience.
📚 Perfect For
Music students
Teachers and educators
Composers and arrangers
Guitarists, pianists, producers
Anyone exploring harmony and musical structure
🌟 A Modern Circle of Fifths
Circle of Fifths Pro combines a beautifully designed interface with a modern theory engine to make harmony feel natural, visual, and easy to navigate. Every feature is crafted to support real musical understanding — from beginners exploring keys to advanced musicians working with modulation and functional harmony.
Interactive Circle of Fifths with audio. Keys, chords, harmony & modulation.
Updated on
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What’s new
Added Borrowed Chords for expanded harmonic options
Added Modal Interchange with mode‑based chord variations
Improved Circle layout (big circle repositioned) for clearer UI/UX
Added Modal Interchange with mode‑based chord variations
Improved Circle layout (big circle repositioned) for clearer UI/UX
App support
phone
Phone number
+61402878725
About the developer
BAMUDA CORPORATION PTY LTD
calonwu@hotmail.com
7 Gerard St
Gladesville NSW 2111
Australia
+61 402 878 725
