Wow the Noisy Clan has knocked this out of the park! These are singularly the highest quality theory products I've ever touched. Well thought out, intuitive, straightforward and simple to understand. The Compass is a must have for practice and the books are perfect. I couldn't be happier. There is clearly a tremendous amount of thought and creativity that went into this. I thank you for your efforts and encourage everyone to try this out. You won't be disappointed.

Great and easy to use

I love this product. I like the way it slides side to side. I have been trying to make my own over the past few years listening to other musicians. I have not had anything made this good. Well pleased thanks

Verdaderamente lo recomiendo al 100%
Excedió mis expectativas, es muy buena herramienta de aprendizaje.
Construido de un material muy resistente.
Estoy satisfecho con mi compra a Noisy Clan
a través de Amazon.

This wonderful piece of kit has unlocked the world of The Circle of Fifths which before had baffled me. Thank you guys so much!👍🎼🏴󠁧󠁢󠁳󠁣󠁴󠁿

It makes it easy, helpful and handy.

Great piece of kit.

Easy to understand

Great product

Clean and clearly illustrated ..

Help a lot

Brilliant easy to use tools for both beginners and pros alike!

This is such a neat little music stand! A real innovation. No more trapped fingers or cumbersome legs to manage. Love it!

I've been playing guitar and bass on and off for some years now but never got serious about learning anything more than basic playing. After getting more serious about music as I'm now playing bass often, I ordered the circle of fifths decoder and book. It took me a minute to understand but when it "clicked" I found this decoder so helpful and easy to use and read! I appreciate the work and creativity that went into making this. Even the paper used is of good quality. I'm a satisfied customer! Good job Noisy Clan!

Absolutely amazing it's well made does exactly what I expected