Interval Mapping Protocol™

Master Fretboard Visualisation Forever

A systematic, interval-based approach to CAGED that connects scales, chords, and arpeggios into one clear visual map of the guitar neck.
Only £47.00!
Students Enrolled
Total Lessons
4+ Hours
Lesson Duration
OverviewModulesReviewsInstructorPricingFAQ

From Confusion to Clarity

Most guitarists experience the fretboard like this:
Scales feel like disconnected box shapes
You lose your place when moving across the neck
Music theory feels abstract and hard to apply
Improvisation becomes guessing instead of intention
In this masterclass, you'll learn how to transform that into:
Visualise the entire guitar neck as one connected map
Connect scales, chords, and arpeggios across all positions
Understand music theory directly on the fretboard
Improvise with clarity instead of guessing

About This Course

Have you ever wondered how experienced guitar players effortlessly navigate scales, modes, and chords across the guitar neck while improvising and composing?

The secret lies in their ability to see intervals across the fretboard and understand how everything connects through powerful frameworks like The CAGED System.

In this masterclass, I’ll provide you with a systematic method to visualise the entire guitar neck, helping you eliminate gaps in your fretboard knowledge and break free from isolated box shapes.

Across 32 structured lessons, you’ll learn how to map intervals across the fretboard and connect triads, seventh arpeggios, pentatonic scales, scales, and modes into one coherent visual system.

The course also includes a detailed practice routine that helps you internalise these concepts through focused exercises and real musical applications.

How It Works

Most guitarists learn the fretboard by memorising scale shapes.

The problem is that shapes alone don’t explain how the guitar neck actually works.

The Interval Mapping Protocol™ reveals the underlying structure of the fretboard by showing how intervals repeat across the five CAGED positions.

Once you see this pattern, scales, chords, arpeggios, and modes stop feeling like separate concepts.

They become one connected visual system across the entire guitar neck.

Inside the Masterclass

Primer

This section sets you up for the course. We talk about fretboard visualisation basics such as interval recognition and the core positions of the neck.
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Frequently Asked Questions

If your questions aren't answered below, please chat with me.
Getting StartedPlans & Pricing

Fretwise is designed specifically for intermediate to advanced guitarists who find themselves at a crossroads in their musical journey.

  • Do you often feel lost or uncertain about how to progress, and perhaps are stuck in the ‘intermediate plateau’?
  • Are you unsure how to practice effectively?
  • Do you want structure and accountability?
  • Is your knowledge of the fretboard fragmented?
  • Do you want to improve both your technique and musical understanding?
  • Do you want a clear and concise learning pathway without all of the fluff and boring instruction from some YouTube teachers?

If you’ve answered yes to any of these then you’re in the right place!

So many things!

  • Quality over quantity: Unlike sites with thousands of lessons, Fretwise cuts the clutter and delivers the most valuable content quickly and effectively. You’ll spend less time lost and more time actually learning.
  • Experienced teaching: Teaching is a skill beyond playing guitar. I’ve taught thousands of one-on-one lessons, run group classes, worked in schools, and helped millions on YouTube. Fretwise combines all of that expertise.
  • Thorough breakdowns: Lessons include detailed video demonstrations, written notes, and the most accurate tabs you’ll find online. Every topic is explained clearly and deeply.
  • Custom built platform: Everything here is carefully crafted and constantly improved—no shortcuts, no compromises.
  • All levels welcome: Beginners, intermediate, and advanced players all find lessons that suit their style, genre, and goals.
  • Proven results: Students often report more progress in months here than in years of trying to teach themselves.

Each Fretwise masterclass is designed to give you a complete, hands-on learning experience:

  • Video Lessons: Concise, clear instruction with on-screen tabs and diagrams to guide you step by step.
  • Written Transcripts: Downloadable PDFs and Guitar Pro files with full lesson notes, diagrams, and tabs.
  • Backing Tracks: Play along with tracks where applicable to apply what you’ve learned musically.
  • Structured Learning: Lessons are organised to take you from fundamentals to advanced techniques smoothly.
  • Practice Ideas: Exercises and tips to reinforce your skills and keep progress consistent.
  • Progress Tracking: Tools to monitor your development and set achievable goals.
  • Support & Community: Post your questions from within any lesson, share experiences, and connect with fellow guitarists.

With these resources, every masterclass empowers you with the knowledge, skills, and support to grow as a guitarist.

Every guitarist progresses at their own pace, but here’s a general guideline:

  • Overall Timeline: Most students spend about 3 months of regular practice to fully grasp a masterclass. While total instructional time is usually 2–3 hours, revisiting lessons and notes is key to absorption.
  • Lesson Duration: Each lesson is bite-sized, under 15 minutes, making it easy to study without feeling overwhelmed.
  • Practice Along: Hands-on practice and repetition with your instructor Darryl are essential to solidify your skills.

There’s no rush — focus on the details, practice consistently, and enjoy the journey. Fretwise supports you whether you aim to progress quickly or take it more gradually.

Regular Updates: Fretwise resources are updated roughly once a month to keep content fresh and relevant.

New Masterclasses: Creating a full masterclass is a bigger project, usually taking 4–6 months to complete.

Quality Over Quantity: Unlike other sites with endless lessons, Fretwise focuses on high-quality, carefully crafted content — no fluff, no overwhelm.

Yes, with some experience: Many courses are marked Beginners or All Levels and are suitable for guitarists with some basic experience. A great starting point is the CAGED Fretboard Visualisation Masterclass, which takes you from beginner to intermediate and opens the door to more advanced lessons.

If you’re starting from zero: Fretwise isn’t ideal for complete beginners. It’s best to first learn basic guitar skills — through a teacher or beginner YouTube lessons — so you can play simple tunes and move confidently around the fretboard. Once you’re comfortable, return to Fretwise and start with CAGED.

Yes! Fretwise is designed for seamless use on desktop, mobile, and tablet, so you can learn wherever you are.

Fretwise offers two ways to access lessons—choose the one that fits your learning style:

Single Course Purchases

  • Class-specific access: Lifetime access to the course(s) you buy — ideal if you only want to learn about a specific topic.
  • Lesson Q&A: Join discussions, ask questions, and connect with fellow guitarists.
  • Progress tracking: Monitor your progress and pick up exactly where you left off.

Fretwise Premium Membership

  • All-access pass: Unlock the entire masterclass library, bonus resources, and exclusive member perks.
  • Comprehensive learning: Explore a wide range of topics and techniques to fill gaps in your skills.
  • Community & progress tracking: Connect, ask questions, share experiences, and track your growth — just like with single courses.
  • Bonus Resources: Much like a Patreon feed that compliments Darryl’s YouTube videos, except all right here on one platform.
  • Cost-effective: Get more resources and perks for less than the cost of buying a single course.

Which should you choose?

  • If you want to dive deep into one topic, a single course is perfect.
  • If you’re eager to explore broadly and access bonus exclusive resources/lessons, Premium gives the most comprehensive experience.

No matter which you pick, Fretwise supports your journey with expert guidance and tools to help you excel on guitar.

Absolutely! Fretwise is one of the most cost- and time-effective investments you can make in your musical education:

  • Affordable masterclasses: Each course costs less than a single one-hour private lesson with Darryl or any top-tier instructor.
  • Premium membership value: Starting at just $20/month — less than $0.65/day — you get access to the full library and extra perks.
  • Time-saving structure: Clear daily and weekly objectives remove guesswork, helping you improve efficiently.

Yes! Cancelling is simple and hassle-free:

  • Log in to your account, go to Profile > Subscription > Cancel. Your membership remains active until the end of your billing cycle, and you won’t be charged again.
  • Reactivating is just as easy — log in anytime to resume, with all your progress saved so you can pick up right where you left off.

While Fretwise doesn’t have a free trial, you can:

  • Try course samples: Sign up on any course landing page to receive free sample lessons via email and get a feel for Darryl’s teaching style.
  • 14-day money-back guarantee: All purchases come with a full refund option if you’re not satisfied — though most students love the content!

For full details, see our Terms of Service.

Preview the Course for Free

Sign up to receive a free sample from: Interval Mapping Protocol™, straight to your inbox!
You will be added to our mailing list. You can unsubscribe at any time