Decoder: Circle of Fifths
![](http://noisyclan.com/cdn/shop/files/WebsiteGraphics_Quote_Decoder_6_960x.png?v=1718121186)
![](http://noisyclan.com/cdn/shop/files/WebsiteGraphics_Quote_Decoder_5_grey2_960x.png?v=1718121185)
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Decode Music Theory
With Decoder: Circle of Fifths, focus on one key at a time without information overload. It shows you the key signatures for each key by visually highlighting which notes are flat or sharp AND shows you where they appear in each key's major scale.
![](http://noisyclan.com/cdn/shop/files/d-transpose.webp?v=1715710397)
Transpose key with a turn of the wheel
Change key effortlessly and transpose instantly with a turn of the Decoder’s wheel. The clear graphics visually separate major, minor and diminished chords for easy differentiation at a glance.
![](http://noisyclan.com/cdn/shop/files/d-cof-e_a.webp?v=1715710368)
Expose and Analyze Chord Progressions
Take a look at the Quick Chords, reminders under every window to build triads for each chord without having to turn the wheel. This way, you can see how chords are built up from the notes. Plus, check out the selection of 12 common chord progressions on the back!
![](http://noisyclan.com/cdn/shop/files/home-decoder_40ef2447-8e47-49de-bda0-30127511b9da.webp?v=1716912625)
Compose Songs
- Keys, chords, notes, and scales organised and visualised.
- Songwriting shortcuts to bring your songs to life
- Recognise commonly used chord progressions
- Find beautiful chords out of the main key.
Decoder Learning Aids
![Decoder: Circle of Fifths General Music Theory Noisy Clan](http://noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_375x.webp?v=1715865945 375w,//noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_410x.webp?v=1715865945 410w,//noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_520x.webp?v=1715865945 520w,//noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_576x.webp?v=1715865945 576w,//noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_768x.webp?v=1715865945 768w,//noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_992x.webp?v=1715865945 992w,//noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_1024x.webp?v=1715865945 1024w,//noisyclan.com/cdn/shop/files/CircleofFifthsGeneralHEROMay24copy_b4184ba0-d7bf-4d1d-8db2-4df340e9e866_1280x.webp?v=1715865945 1280w)
![Decoder: Circle of Fifths for Guitar Noisy Clan](http://noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_375x.png?v=1718887119 375w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_410x.png?v=1718887119 410w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_520x.png?v=1718887119 520w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_576x.png?v=1718887119 576w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_768x.png?v=1718887119 768w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_992x.png?v=1718887119 992w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_1024x.png?v=1718887119 1024w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_1280x.png?v=1718887119 1280w)
![Decoder: Circle of Fifths for Guitar Noisy Clan](http://noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_375x.webp?v=1715865982 375w,//noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_410x.webp?v=1715865982 410w,//noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_520x.webp?v=1715865982 520w,//noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_576x.webp?v=1715865982 576w,//noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_768x.webp?v=1715865982 768w,//noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_992x.webp?v=1715865982 992w,//noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_1024x.webp?v=1715865982 1024w,//noisyclan.com/cdn/shop/files/CircleofFifthsGuitarHEROMay24copy_89dd622a-4e07-4395-8910-6b030f765f8b_1280x.webp?v=1715865982 1280w)
![Decoder: Circle of Fifths for Guitar Noisy Clan](http://noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_375x.png?v=1718887119 375w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_410x.png?v=1718887119 410w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_520x.png?v=1718887119 520w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_576x.png?v=1718887119 576w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_768x.png?v=1718887119 768w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_992x.png?v=1718887119 992w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_1024x.png?v=1718887119 1024w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_1280x.png?v=1718887119 1280w)
![Decoder: Circle of Fifths for Ukulele Noisy Clan](http://noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_375x.webp?v=1715865905 375w,//noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_410x.webp?v=1715865905 410w,//noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_520x.webp?v=1715865905 520w,//noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_576x.webp?v=1715865905 576w,//noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_768x.webp?v=1715865905 768w,//noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_992x.webp?v=1715865905 992w,//noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_1024x.webp?v=1715865905 1024w,//noisyclan.com/cdn/shop/files/CircleofFifthsukuHEROMay24copy_26a89b83-70cd-425a-bf42-ddd711fca422_1280x.webp?v=1715865905 1280w)
![Decoder: Circle of Fifths for Guitar Noisy Clan](http://noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_375x.png?v=1718887119 375w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_410x.png?v=1718887119 410w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_520x.png?v=1718887119 520w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_576x.png?v=1718887119 576w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_768x.png?v=1718887119 768w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_992x.png?v=1718887119 992w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_1024x.png?v=1718887119 1024w,//noisyclan.com/cdn/shop/files/CoF_Product_Image_Hand_BOOSTER_1280x.png?v=1718887119 1280w)
![Decoder: Teacher's Dozen Noisy Clan](http://noisyclan.com/cdn/shop/files/t-dozen_375x.webp?v=1718999719 375w,//noisyclan.com/cdn/shop/files/t-dozen_410x.webp?v=1718999719 410w,//noisyclan.com/cdn/shop/files/t-dozen_520x.webp?v=1718999719 520w,//noisyclan.com/cdn/shop/files/t-dozen_576x.webp?v=1718999719 576w,//noisyclan.com/cdn/shop/files/t-dozen_768x.webp?v=1718999719 768w,//noisyclan.com/cdn/shop/files/t-dozen_992x.webp?v=1718999719 992w,//noisyclan.com/cdn/shop/files/t-dozen_1024x.webp?v=1718999719 1024w,//noisyclan.com/cdn/shop/files/t-dozen_1280x.webp?v=1718999719 1280w)
![Decoder: Teacher's Dozen Noisy Clan](http://noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_375x.webp?v=1718999726 375w,//noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_410x.webp?v=1718999726 410w,//noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_520x.webp?v=1718999726 520w,//noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_576x.webp?v=1718999726 576w,//noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_768x.webp?v=1718999726 768w,//noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_992x.webp?v=1718999726 992w,//noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_1024x.webp?v=1718999726 1024w,//noisyclan.com/cdn/shop/products/decoder-hero_09b586dc-2897-4d37-a593-a72fc8b55cfc_1280x.webp?v=1718999726 1280w)
![Decoder: Essential Card Edition 12 Pack Noisy Clan](http://noisyclan.com/cdn/shop/files/booster-12_375x.webp?v=1718906179 375w,//noisyclan.com/cdn/shop/files/booster-12_410x.webp?v=1718906179 410w,//noisyclan.com/cdn/shop/files/booster-12_520x.webp?v=1718906179 520w,//noisyclan.com/cdn/shop/files/booster-12_576x.webp?v=1718906179 576w,//noisyclan.com/cdn/shop/files/booster-12_768x.webp?v=1718906179 768w,//noisyclan.com/cdn/shop/files/booster-12_992x.webp?v=1718906179 992w,//noisyclan.com/cdn/shop/files/booster-12_1024x.webp?v=1718906179 1024w,//noisyclan.com/cdn/shop/files/booster-12_1280x.webp?v=1718906179 1280w)
![Decoder Essential Card Edition 12 Pack Noisy Clan](http://noisyclan.com/cdn/shop/products/d-essential-dozen_375x.webp?v=1718906184 375w,//noisyclan.com/cdn/shop/products/d-essential-dozen_410x.webp?v=1718906184 410w,//noisyclan.com/cdn/shop/products/d-essential-dozen_520x.webp?v=1718906184 520w,//noisyclan.com/cdn/shop/products/d-essential-dozen_576x.webp?v=1718906184 576w,//noisyclan.com/cdn/shop/products/d-essential-dozen_768x.webp?v=1718906184 768w,//noisyclan.com/cdn/shop/products/d-essential-dozen_992x.webp?v=1718906184 992w,//noisyclan.com/cdn/shop/products/d-essential-dozen_1024x.webp?v=1718906184 1024w,//noisyclan.com/cdn/shop/products/d-essential-dozen_1280x.webp?v=1718906184 1280w)
![Cheat Sheets for Guitar Noisy Clan](http://noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_375x.webp?v=1718906829 375w,//noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_410x.webp?v=1718906829 410w,//noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_520x.webp?v=1718906829 520w,//noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_576x.webp?v=1718906829 576w,//noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_768x.webp?v=1718906829 768w,//noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_992x.webp?v=1718906829 992w,//noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_1024x.webp?v=1718906829 1024w,//noisyclan.com/cdn/shop/files/booster-cs-guitar-hero_1280x.webp?v=1718906829 1280w)
![Cheat Sheets for Guitar Noisy Clan](http://noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_375x.jpg?v=1718906969 375w,//noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_410x.jpg?v=1718906969 410w,//noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_520x.jpg?v=1718906969 520w,//noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_576x.jpg?v=1718906969 576w,//noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_768x.jpg?v=1718906969 768w,//noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_992x.jpg?v=1718906969 992w,//noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_1024x.jpg?v=1718906969 1024w,//noisyclan.com/cdn/shop/files/AmazonHeroBwithHand_1280x.jpg?v=1718906969 1280w)
![Cheat Sheets for Ukulele Noisy Clan](http://noisyclan.com/cdn/shop/files/booster-cs-uke-hero_375x.webp?v=1718906829 375w,//noisyclan.com/cdn/shop/files/booster-cs-uke-hero_410x.webp?v=1718906829 410w,//noisyclan.com/cdn/shop/files/booster-cs-uke-hero_520x.webp?v=1718906829 520w,//noisyclan.com/cdn/shop/files/booster-cs-uke-hero_576x.webp?v=1718906829 576w,//noisyclan.com/cdn/shop/files/booster-cs-uke-hero_768x.webp?v=1718906829 768w,//noisyclan.com/cdn/shop/files/booster-cs-uke-hero_992x.webp?v=1718906829 992w,//noisyclan.com/cdn/shop/files/booster-cs-uke-hero_1024x.webp?v=1718906829 1024w,//noisyclan.com/cdn/shop/files/booster-cs-uke-hero_1280x.webp?v=1718906829 1280w)
![Cheat Sheets for Ukulele Noisy Clan](http://noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_375x.jpg?v=1713273780 375w,//noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_410x.jpg?v=1713273780 410w,//noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_520x.jpg?v=1713273780 520w,//noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_576x.jpg?v=1713273780 576w,//noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_768x.jpg?v=1713273780 768w,//noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_992x.jpg?v=1713273780 992w,//noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_1024x.jpg?v=1713273780 1024w,//noisyclan.com/cdn/shop/files/8105afxUMjL._AC_SX679_1280x.jpg?v=1713273780 1280w)
![Cheat Sheet for Piano Noisy Clan](http://noisyclan.com/cdn/shop/files/p-cs-hero_375x.webp?v=1722451283 375w,//noisyclan.com/cdn/shop/files/p-cs-hero_410x.webp?v=1722451283 410w,//noisyclan.com/cdn/shop/files/p-cs-hero_520x.webp?v=1722451283 520w,//noisyclan.com/cdn/shop/files/p-cs-hero_576x.webp?v=1722451283 576w,//noisyclan.com/cdn/shop/files/p-cs-hero_768x.webp?v=1722451283 768w,//noisyclan.com/cdn/shop/files/p-cs-hero_992x.webp?v=1722451283 992w,//noisyclan.com/cdn/shop/files/p-cs-hero_1024x.webp?v=1722451283 1024w,//noisyclan.com/cdn/shop/files/p-cs-hero_1280x.webp?v=1722451283 1280w)
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![Decoder: Chord Compass for Guitar Noisy Clan](http://noisyclan.com/cdn/shop/files/CC-guitar_375x.webp?v=1721916898 375w,//noisyclan.com/cdn/shop/files/CC-guitar_410x.webp?v=1721916898 410w,//noisyclan.com/cdn/shop/files/CC-guitar_520x.webp?v=1721916898 520w,//noisyclan.com/cdn/shop/files/CC-guitar_576x.webp?v=1721916898 576w,//noisyclan.com/cdn/shop/files/CC-guitar_768x.webp?v=1721916898 768w,//noisyclan.com/cdn/shop/files/CC-guitar_992x.webp?v=1721916898 992w,//noisyclan.com/cdn/shop/files/CC-guitar_1024x.webp?v=1721916898 1024w,//noisyclan.com/cdn/shop/files/CC-guitar_1280x.webp?v=1721916898 1280w)
![Decoder: Chord Compass Noisy Clan](http://noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_375x.webp?v=1711637661 375w,//noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_410x.webp?v=1711637661 410w,//noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_520x.webp?v=1711637661 520w,//noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_576x.webp?v=1711637661 576w,//noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_768x.webp?v=1711637661 768w,//noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_992x.webp?v=1711637661 992w,//noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_1024x.webp?v=1711637661 1024w,//noisyclan.com/cdn/shop/files/ChordCompass_hands_copy_1280x.webp?v=1711637661 1280w)
Frequently Asked Questions
What are the dimensions and materials?
Materials: Polypropylene, plastic press studs.
Dimensions: 146mm x 146mm x 4mm (W x L x D)
Weight: Decoder 45g (0.1lbs) , Book 150g (0.33lbs)
What is the circle of fifths?
The Circle of Fifths arranges the 12 major keys found in western music, in a circle. Each key is separated by an interval of a 5th - hence the Circle of Fifths!
How many pages are in the book?
Decoder: Circle of Fifths for Ukulele comes a 78 page booklet packed with illustrations, examples and handy tips to get you playing more.
I'm a beginner. Can I use Decoder: Circle of Fifths?
Yes, Decoder: Circle of Fifths and its accompanying reading companion are designed to help musicians of all abilities. As you learn, you can progress through the book and find new ways to apply the circle of fifths to your playing.
What is the difference between the yellow and green Decoder: Circle of Fifths?
The Yellow Decoder has an optional built in stand. It snaps in place in the back or can be snapped out of the way.
The Yellow Decoder is made of plastic. The Green Decoder Essential is made of cardboard.
Additionally, the Yellow Decoder displays Secondary Subdominant and Secondary Dominant. They appear in the frosted windows.