• Pictogramme note de musique pour les débutants à la guitare qui souhaitent progresser grâce à GuitarScaler

    You are starting out on guitar and feel overwhelmed by theory

  • Pictogramme guitare électrique pour les artistes avancés qui souhaitent progresser

    You are an advanced guitarist and want to progress in improvisation

  • Pictogramme guitariste bloqué qui cherche une solution pour faire ses impro

    You experience roadblocks in learning scales

  • Pictogramme créativité pour le produit GuitarScaler pour avancer dans ses gammes

    You are looking for a simple tool to boost your creativity

They thought it was too hard... then they tried GuitarScaler

Michel B.

Thanks to GuitarScaler I'm starting my first improvised solos

1 Mar. 2026
Laurent M.

excellent idea! the ruler allows you to progress quickly on your scales and improvisations, the product is high quality: well laminated clearly a product that will last over time

9 Oct 2025
Photo avis du client Serges présent sur Amazon sur notre produit GuitarScaler
Serge S.

It's very easy to visualize the different scales and modes. The cards are made of flexible plastic, very effective. And thanks again for the extra pick. I highly recommend.

21 Jan 2024
Photo avis du client Lehot présent sur Amazon sur notre produit GuitarScaler
Olivier L.

Excellent method with a very clear color code for learning or perfecting your solos, improvisations and scales. Thanks to guitarscaler.com!!

6 Apr 2024
Benjamin S.

Super product for understanding and working on your improvisations. Excellent quality (solid plastic) to take everywhere with you!

29 Oct 2024
Photo d'avis client de GuitarScaler avec le produit déballé sur Amazon
Manuel A.

Just received, can't wait to start using the cards! The scales and chords are easily readable, the cards are large and laminated. Very happy to have received this tool!

12 Jan 2024
photo d'avis client de GuitarScaler sur  amazon
Claude A.

Magnificent working tool! It's a remarkable idea and very simple to use! Thank you so much!!!

Jan 1, 2025
José

Being a novice at guitar, I needed a visualization of the fretboard with everything that entails. With GuitarScaler all that was quickly resolved. Easy to use and comprehensive. Now I take real pleasure in working on the guitar. Seeing things much more clearly. I highly recommend it

29 Oct. 2020
Samuel M.

Guitarscaler is an effective tool for learning chords and different techniques for soloing.

I often use it to try improvising over instrumentals and it's fabulous!!

5 Dec 2025
Laurent M.

It's really ideal for understanding scales, modes, keys and intervals.

5 Jan 2026
Patrick B.

I've been going through various methods for years with the eternal feeling of going around in circles. With the GuitarScaler I made a leap in my progress, this study system is just brilliant and disarmingly simple. It's a very beautiful tool, laminated and of very good quality that will last over time without problem, it is sent in careful packaging with a nice little note and a pick. I really recommend this quality product for progressing. Bravo to the designer(s).

22 Sep 2018
Photo avis du client Didier présent sur Amazon sur notre produit GuitarScaler
Didier M.

Super happy with my purchase. I can learn my scales with great ease of reading while changing key very easily. The fact that everything is laminated reassures me about the lifespan of this learning tool. I recommend.

12 Nov 2020
Christophe M.

I already had some basics but this goes further, I really like the guitar scaler, thank you

9 Jan 2026
Laure F.

I was looking for a method to memorize and learn the entire guitar neck. With guitarSacler this learning becomes child's play... I recommend this product ❤️

Fev 10, 2023
Vincent P.

The Guitar Part allows me to quickly find my way around the fretboard and link the different scale shapes regardless of the key of the piece.

Having it in front of my eyes all the time also allows me to memorize them, to be more comfortable and to gain confidence when I have to move up or down the fretboard.

It also helped me understand relative scales which I was struggling with a bit.

An essential product for the beginner that I am!

15 Dec 2025
Olivier P.

Like many here, I searched for a long time, struggled to find an effective solution to learn my scales on the 5 positions and in any key. I'm an intermediate beginner, and I needed to "seriously" work on this technical learning to start evolving in the way I play acoustic guitar.
This tool allows you to better understand your guitar neck and quickly be put in a position to play the scales of your choice and especially in the right key. No more spending (fruitless) time finding the right scale in the key of your choice, here, in less than 2s, you get the 5 positions of the scale of your choice over the entire length of the neck.
Very practical and easily transportable tool to have it with you at all times and take 10-15 min of your time to work on your scales comfortably! Bravo

12 July 2023
Titi A.

Not being a good guitarist, I hesitated to buy this kind of method and after receiving GuitarSCALER FREE IMPROV, I realize that it is super effective, even for a beginner. I really recommend.

Jul 31, 2024
Vincent G.

The GuitarScaler helps me understand the positions of scales, root notes and how they work. The Jam Sessions make me work progressively with great pleasure.

15 Jan 2026
Samuel M.

It gives me a framework that allows me to play notes that sound right according to the key of a song.

It took me time to learn the different shapes of the pentatonic scale and now I can play easily across the entire fretboard.

30 Jan 2026
Laurent A.

Brings scales together in a single tool. The sliding card principle is very nice. Being left-handed, I was apprehensive about using it, but actually it's all good, I use it "upside down" and as a result I see the positions as if I were looking at myself in a mirror. Great.

Jun 26, 2024
Michel B.

Thanks to GuitarScaler I'm starting my first improvised solos

1 Mar. 2026
José

Being a novice at guitar, I needed a visualization of the fretboard with everything that entails. With GuitarScaler all that was quickly resolved. Easy to use and comprehensive. Now I take real pleasure in working on the guitar. Seeing things much more clearly. I highly recommend it

29 Oct. 2020
Vincent P.

The Guitar Part allows me to quickly find my way around the fretboard and link the different scale shapes regardless of the key of the piece.

Having it in front of my eyes all the time also allows me to memorize them, to be more comfortable and to gain confidence when I have to move up or down the fretboard.

It also helped me understand relative scales which I was struggling with a bit.

An essential product for the beginner that I am!

15 Dec 2025
Laurent M.

excellent idea! the ruler allows you to progress quickly on your scales and improvisations, the product is high quality: well laminated clearly a product that will last over time

9 Oct 2025
Samuel M.

Guitarscaler is an effective tool for learning chords and different techniques for soloing.

I often use it to try improvising over instrumentals and it's fabulous!!

5 Dec 2025
Olivier P.

Like many here, I searched for a long time, struggled to find an effective solution to learn my scales on the 5 positions and in any key. I'm an intermediate beginner, and I needed to "seriously" work on this technical learning to start evolving in the way I play acoustic guitar.
This tool allows you to better understand your guitar neck and quickly be put in a position to play the scales of your choice and especially in the right key. No more spending (fruitless) time finding the right scale in the key of your choice, here, in less than 2s, you get the 5 positions of the scale of your choice over the entire length of the neck.
Very practical and easily transportable tool to have it with you at all times and take 10-15 min of your time to work on your scales comfortably! Bravo

12 July 2023
Photo avis du client Serges présent sur Amazon sur notre produit GuitarScaler
Serge S.

It's very easy to visualize the different scales and modes. The cards are made of flexible plastic, very effective. And thanks again for the extra pick. I highly recommend.

21 Jan 2024
Laurent M.

It's really ideal for understanding scales, modes, keys and intervals.

5 Jan 2026
Titi A.

Not being a good guitarist, I hesitated to buy this kind of method and after receiving GuitarSCALER FREE IMPROV, I realize that it is super effective, even for a beginner. I really recommend.

Jul 31, 2024
Photo avis du client Lehot présent sur Amazon sur notre produit GuitarScaler
Olivier L.

Excellent method with a very clear color code for learning or perfecting your solos, improvisations and scales. Thanks to guitarscaler.com!!

6 Apr 2024
Patrick B.

I've been going through various methods for years with the eternal feeling of going around in circles. With the GuitarScaler I made a leap in my progress, this study system is just brilliant and disarmingly simple. It's a very beautiful tool, laminated and of very good quality that will last over time without problem, it is sent in careful packaging with a nice little note and a pick. I really recommend this quality product for progressing. Bravo to the designer(s).

22 Sep 2018
Vincent G.

The GuitarScaler helps me understand the positions of scales, root notes and how they work. The Jam Sessions make me work progressively with great pleasure.

15 Jan 2026
Benjamin S.

Super product for understanding and working on your improvisations. Excellent quality (solid plastic) to take everywhere with you!

29 Oct 2024
Photo avis du client Didier présent sur Amazon sur notre produit GuitarScaler
Didier M.

Super happy with my purchase. I can learn my scales with great ease of reading while changing key very easily. The fact that everything is laminated reassures me about the lifespan of this learning tool. I recommend.

12 Nov 2020
Samuel M.

It gives me a framework that allows me to play notes that sound right according to the key of a song.

It took me time to learn the different shapes of the pentatonic scale and now I can play easily across the entire fretboard.

30 Jan 2026
Photo d'avis client de GuitarScaler avec le produit déballé sur Amazon
Manuel A.

Just received, can't wait to start using the cards! The scales and chords are easily readable, the cards are large and laminated. Very happy to have received this tool!

12 Jan 2024
Christophe M.

I already had some basics but this goes further, I really like the guitar scaler, thank you

9 Jan 2026
Laurent A.

Brings scales together in a single tool. The sliding card principle is very nice. Being left-handed, I was apprehensive about using it, but actually it's all good, I use it "upside down" and as a result I see the positions as if I were looking at myself in a mirror. Great.

Jun 26, 2024
photo d'avis client de GuitarScaler sur  amazon
Claude A.

Magnificent working tool! It's a remarkable idea and very simple to use! Thank you so much!!!

Jan 1, 2025
Laure F.

I was looking for a method to memorize and learn the entire guitar neck. With guitarSacler this learning becomes child's play... I recommend this product ❤️

Fev 10, 2023

30-day guarantee

You have 30 days to test the GuitarScaler®.

If it doesn't suit you, you can return it to us at your expense and we will fully refund you (subject to the ruler being in good condition).

After the refund, you will no longer have access to the member area where the accompanying training is located.

GuitarScaler®

The easy method to learn your scales and start improvising on guitar

The GuitarScaler® method guarantees you'll be able to improvise:

✅ whatever your level

✅ in all keys

✅ and across the entire length of the neck!

You'll play your own solos over any piece of music.

GuitarScaler®, it's an accelerated program to get started with guitar improv.

No long boring theories and endless scale work. Here, we go straight to practice. There will always be time to learn theory later. 😉

With this method, you immediately enter the heart of improv playing through an instant and fun experience.

Order now
Utilisation d'une reglette GuitarScaler par un guitariste en action

For all levels, from beginner to advanced

The GuitarScaler® is specially designed so that even absolute beginners can succeed with their first improvs right from the start.

The goal is to very quickly reach a sufficient level to be able to improvise freely and continue progressing in complete autonomy.

Produit GuitarScaler Multi Scales

Go even further!

The Multi-scale ruler shows the names and position of intervals: third, fifth, octave, it's all there!

It's not just a detail! Intervals are THE KEY for creations that sound right, that touch, that groove.
It's thanks to them that we compose, that we improvise, that we understand what we're playing.
With the Multi-scale ruler, you see the intervals. You feel their logic. And you play with your brain... and with your heart.

Image descriptionImage description
No screen, no app 100% visual Easy to understand Simple & effective
Parution article dans le magazine GuitarPart

Method acclaimed by Guitar Part

FAQ

Who is GuitarScaler® for?

GuitarScaler® is for guitarists of all levels, from beginner to advanced, who want to quickly learn to improvise in different musical styles.

What does GuitarScaler® contain?

The GuitarScaler® pack includes:

The GuitarScaler®: 1 case + 4 rulers
✅ 1 pentatonic scale ruler (with the 5 colored shapes)
✅ 1 natural scale ruler
✅ 1 blues ruler
✅ 1 Multi ruler with the name and location of intervals

On the back of the case:
70 of the most commonly used chords including 7th chords and Power Chords
✅ The CAGED SYSTEM (to play the chords of a key in different places on the neck)

Access to the digital training area:
Theoretical videos to understand scales
Practical videos to learn how to play over them
Drum audio tracks in different styles to accompany you
✅ A digital book to quickly learn the basics

Do I need to know music theory to use this method?

No, no need to know music theory or theory, GuitarScaler® allows you to dive right into improvisation practice in a fun and visual way. Theory can be explored in greater depth later.

Will I be refunded if this system doesn't suit me?

Yes. You have 30 days to try the GuitarScaler® method.

If it doesn't suit you, you can return the GuitarScaler at your expense and I will refund you in full, provided it is in good condition.

Note: After the refund, your access to the member area and training will be deactivated.

To make a return, contact us beforehand via the contact form.

Is there a version for left-handed players?

There is no specific left-handed model but it's a mental adjustment to make and then you get used to it very quickly. You use the GuitarScaler as a mirror image, like when you're facing a guitar teacher. Whether you're left-handed or right-handed, you adapt very quickly 😊

What are the delivery times?

We ship your order within 1 to 2 business days. Then, depending on the destination, the delivery time is generally 3-5 days for Metropolitan France, and up to 8-10 days for other destinations (indicative times).

This method reminds me of the Dadi ruler, how is it different?

The Dadi ruler is used to diagram the construction of chords and scales using color codes, symbols and letters, but it does not show the position of notes on the neck like GuitarScaler® does. Moreover, the Dadi ruler is a very complex system that is intended for seasoned musicians in terms of music theory. GuitarScaler®, on the other hand, shows very simply and very clearly the position of each note on the guitar neck.

Does GuitarScaler® exist for bass?

There is no specific version for bass: our bass player friends also use GuitarScaler®, but they only deal with the 4 low strings! 🤘🏼

  • Made in France 🇫🇷

    GuitarScaler® is printed in Lyon, then assembled in Var by an association (ESAT).

  • Ultra resistant 💪🏼

    GuitarScaler® is made of screen-printed polypropylene, making it a tool for life!

  • Adopted by +5000 guitarists 🤘🏼

    The GuitarScaler® has already won over many guitarists, from beginners to advanced players, and even teachers.