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Decoder: Essential Card Edition 12 Pack

Decoder: Essential Card Edition 12 Pack

Precio habitual €66,95 EUR
Precio habitual Precio de oferta €66,95 EUR
Oferta Agotado
Impuesto incluido. Los gastos de envío se calculan en la pantalla de pago.

12 Essential Edition Decoder: Circle of Fifths in one convenient pack! Perfect to play and learn together with your musical group.  Check out the Teacher's Bundle for the classroom!

✓ Decode Music Theory

With Decoder, focus on one key at a time without information overload.

✓ Expose and Analyze Chord Progressions

Check out the selection of 12 common chord progressions on the back to get you playing and applying your new Circle of Fifths knowledge. 

✓ 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.  It is an easy-to-digest, graphical representation of the structures in the music we hear daily. 

✓ Compose your own songs

More than a cheat sheet. It organises keys, chords, notes, and scales according to what they have in common and how good they sound together. 

✓ Satisfaction Guarunteed

  • 30-Day Money Back Guaruntee

All products ship within 24 hours. Please feel free to reach out to us at anytime to check on your order

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    Durable plastic with built-in, optional stand. Complete with Reading Companion.

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    Share your knowledge! Decoder Essential 12 Pack bundled with Decoder + Reading Companion.

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Frequently Asked Questions

Dimensions & Materials

Materials: Polypropylene, nickel press studs.

Dimensions: 146mm x 146mm x 4mm (W x L x D)

Weight: Decoder 45g (0.1lbs) , Book 150g (0.33lbs)

Care Instructions

Wipe with a damp cloth.

Shipping & Returns


Thank you for placing an order with us. In order to make shipping faster and more cost-effective, we ship from locations in the US, UK, and Asia.

Free UK shipping. Shipping to the EU and AU will be with Royal Mail and will take approximately 1-3 weeks. In the USA, we ship to the lower 48 states with free shipping for orders over $40 which includes Tracked shipping via USPS. Products are shipped from our CA warehouse and generally arrive between 4-10 days.

*Orders generally arrive 9-18 days by Royal Mail. If additional arrangements need to be made to ship effectively to countries that are outside of our assured shipping zones, we will prompt you to contact us during checkout upon confirming your shipping country.

All products will ship within 24 hours. Please feel free to reach out to us at anytime to check on your order at 

What is a 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 booklet?

Decoder: Circle of Fifths comes with a Reading Companion - a 36 page booklet packed with examples and handy tips to get you playing straight out of the box.

I'm a beginner. Can I use Decoder?

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.