How many chords and scales does fretengine have?

fretengine includes over 7,000 chord voicings and scale patterns across 50+ chord types and 40+ scale types in all 12 keys. This includes open shapes, barre chords, jazz extensions, pentatonics, and modes.

Which instruments are supported?

fretengine currently supports 6-string guitar in standard tuning. Support for additional instruments and tunings is planned for the future.

How do I learn guitar scales using fretengine?

Select any scale from the 40+ available options (pentatonic, major, minor, modes, blues, jazz scales) and see it displayed across the entire fretboard. Toggle between note names and intervals to understand scale construction. Layer a chord on top to see which scale notes are chord tones.

What are chord-scale relationships?

Chord-scale relationships show which scales work over which chords. fretengine lets you layer a chord and scale together to visually see the overlap - chord tones appear in both layers, helping you understand why certain scales sound good over certain chords.

What chord types are available in fretengine?

fretengine includes 50+ chord types: major, minor, diminished, augmented, 7th chords (maj7, min7, dom7, m7b5, dim7), extended chords (9th, 11th, 13th), altered chords, sus chords, add chords, and slash chords. Each chord has multiple voicings across the fretboard.

How does fretengine help with guitar music theory?

fretengine includes built-in theory explanations for every chord and scale, showing interval formulas and construction. The visual fretboard display helps you see patterns and connections that are hard to understand from text alone - like how a chord fits within a scale or how modes differ.

Is fretengine good for beginner guitarists?

Beginners can use fretengine to look up any chord shape, learn basic scales like pentatonic and major, and understand how notes are named on the fretboard. The built-in theory explanations help you learn the 'why' alongside the 'where'.

Which display options are available?

fretengine offers multiple display modes: note names (C, D, E, etc.), intervals (R, 3, 5, 7, etc.), and finger positions. You can also switch to left-handed orientation. These options help you understand both the practical fingering and the theoretical construction of chords and scales.

What is the best way to learn guitar fretboard notes?

Use fretengine's note name display to see all notes across the fretboard. Start by learning the notes on one string, then see how they repeat on other strings. The visual layout helps you recognize patterns and octave relationships that make memorization easier.

How do I find different voicings for a chord?

In fretengine, select any chord and browse through all available voicings - open shapes, barre chords, jazz voicings, and partial chord forms. Each voicing shows finger positions and can be compared side-by-side with other voicings of the same chord.

What practice tools does fretengine include?

Beyond chord and scale visualization, fretengine includes a precision metronome with tap tempo, a synchronized timeline for practicing chord progressions in time, and Note Explorer — an interactive game that challenges you to find notes across the fretboard. New practice tools are added regularly.

What is the pentatonic scale and how do I learn it?

The pentatonic scale is a five-note scale widely used in rock, blues, and pop music. fretengine includes both major and minor pentatonic scales. Visualize them on the fretboard, see the interval patterns, and layer them over chords to understand how to use them for soloing.

How do I understand intervals on guitar?

Use fretengine's interval display mode to see any chord or scale as intervals (Root, 2nd, 3rd, 4th, 5th, 6th, 7th). This helps you understand chord and scale construction - for example, seeing that a major chord is Root-3rd-5th, while a minor chord is Root-flat 3rd-5th.

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Guitar learning tools: chords, scales, theory, and more

Stop memorizing shapes. Start seeing connections.

Unlock the logic behind the guitar fretboard with a rich suite of learning tools. Layer chords and scales to reveal how they relate and build a natural understanding of guitar theory.

Free, no ads.

A new way to see the fretboard

fretengine lets you add multiple chords and scales to the fretboard at once. See exactly where notes intersect, where a chord sits within a scale, and how shapes connect across the neck.

Multiple overlays

Layer chords, scales, and patterns together. Reorder, toggle visibility, and compare shapes in real time.

Flexible display

Visualize the neck your way: intervals, note names, or finger positions. Left-handed and alternate orientations included.

7,000+ voicings and patterns

A massive library of 50+ chord types and 40+ scales across all 12 keys. Open shapes, barre chords, jazz extensions, pentatonics, modes.

Built-in theory

Every chord and scale includes interval breakdowns and clear explanations. Learn the why alongside the where.

Practice tools built in

fretengine includes interactive tools designed to accelerate your practice.

Precision metronome

Keep perfect time with tap tempo, adjustable BPM, and beat accents. Runs in the background while you explore the fretboard.

Visualize in time

Sync fretboard visualizations with the metronome to see chord progressions unfold in real time. Practice soloing over changes or watch scale shapes cycle through positions, all hands-free.

And more

Test your fretboard knowledge with Note Explorer, a timed game that challenges you to find notes across the neck. New tools are added regularly.

Connect the dots

Static chord dictionaries only tell half the story. fretengine reveals the connections that unlock the fretboard.

Solo with confidence

Layer a scale over the chord you're playing against. The overlapping notes guide your phrasing, showing you exactly which notes fit.

Smooth out your voice leading

Add two chords from a progression and see which tones they share. Common tones create smoother transitions.

Demystify modes

Stack Dorian next to natural minor to see the difference instantly. Visual comparison cuts through the confusion.

Build your vocabulary

Filter for moveable shapes with no open strings. Learn one position, then shift it to any key.

For all levels

Beginners

Build the right foundations. Look up any chord or scale. Theory explanations built in.

Intermediate

See deep connections. Understand how scales and chords relate.

Advanced

Push past the plateau. Map extended voicings, altered scales, and substitutions.

Teachers

Show, don't tell. Demonstrate in seconds what takes pages to explain.

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Free to use. No account required. No download. Works in any browser.

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Frequently asked questions

What is fretengine?

fretengine is a free guitar learning platform with 7,000+ chord voicings, scale patterns, a built-in metronome, and interactive practice tools. Layer chords over scales, practice in time, and master the fretboard.

Is fretengine free to use?

Yes, fretengine is 100% free to use. No account required, no download needed. It works directly in any web browser.

How many chords and scales are available?

fretengine includes over 7,000 voicings, 50+ chord types, and 40+ scales across all 12 keys. This includes open shapes, barre chords, jazz extensions, pentatonics, and modes.

How do I learn chord-scale relationships?

In fretengine, add a chord (like Cmaj7) and then layer a scale (like C major) on top. The overlapping notes show you which scale tones are chord tones.

Can I use fretengine to learn guitar modes?

fretengine includes all seven modes (Ionian, Dorian, Phrygian, Lydian, Mixolydian, Aeolian, Locrian) plus modes from harmonic and melodic minor.

Does fretengine work on mobile?

Yes, fretengine works in any modern web browser on desktop, tablet, or mobile devices.

Does fretengine have a metronome?

Yes, fretengine includes a built-in precision metronome with tap tempo, adjustable BPM (20-300), and beat accents. It runs in the background while you explore the fretboard.

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For guitar players who see the big picture.

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