🎸ALL-IN-ONE MUSICIAN TOOLKIT

Guitar Tools & Practice Suite

Master open and barre chord shapes, visualize scale patterns across the 12-fret neck, lock your groove with zero-drift metronome clicks, and calculate string frequencies in Hertz.

📖Chord Library28 🎼Scale Visualizer12 Frets ⏱️Online Metronome 📊String FrequenciesHz

Strum Style:

C Major

major

Essential Folk & Pop Root

X••O•O

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 3 • 2 • 0 • 1 • 0

Index: 2nd str (1st fret), Middle: 4th str (2nd fret), Ring: 5th str (3rd fret)

G Major

major

Full Resonance Acoustic

••OOO•

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: 3 • 2 • 0 • 0 • 0 • 3

Middle: 6th str (3rd fret), Index: 5th str (2nd fret), Pinky: 1st str (3rd fret)

D Major

major

Bright Triangle Shape

XXO•••

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • X • 0 • 2 • 3 • 2

Index: 3rd str (2nd fret), Ring: 2nd str (3rd fret), Middle: 1st str (2nd fret)

E Major

major

Deep 6-String Power

O•••OO

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: 0 • 2 • 2 • 1 • 0 • 0

Middle: 5th str (2nd fret), Ring: 4th str (2nd fret), Index: 3rd str (1st fret)

A Major

major

Classic Triple Stack

XO•••O

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 0 • 2 • 2 • 2 • 0

Index, Middle, and Ring clustered on 2nd fret of strings 4, 3, 2

F Major (Easy/Open)

major

Small F Shape

XX••••

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • X • 3 • 2 • 1 • 1

Ring: 4th str (3rd fret), Middle: 3rd str (2nd fret), Index barres strings 1 & 2 (1st fret)

E Minor (Em)

minor

Simplest 2-Finger Chord

O••OOO

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: 0 • 2 • 2 • 0 • 0 • 0

Middle: 5th str (2nd fret), Ring: 4th str (2nd fret)

A Minor (Am)

minor

Emotional Ballad Staple

XO•••O

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 0 • 2 • 2 • 1 • 0

Index: 2nd str (1st fret), Middle: 4th str (2nd fret), Ring: 3rd str (2nd fret)

D Minor (Dm)

minor

Melancholic Resonance

XXO•••

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • X • 0 • 2 • 3 • 1

Index: 1st str (1st fret), Middle: 3rd str (2nd fret), Ring: 2nd str (3rd fret)

B Minor (Bm)

minor

Standard Barre Chord

X•••••

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 2 • 4 • 4 • 3 • 2

Index barres 2nd fret, Middle: 2nd str (3rd fret), Pinky & Ring: strings 3 & 4 (4th fret)

G Dominant 7th (G7)

seventh

Blues & Folk Turnaround

••OOO•

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: 3 • 2 • 0 • 0 • 0 • 1

Ring: 6th str (3rd fret), Middle: 5th str (2nd fret), Index: 1st str (1st fret)

C Dominant 7th (C7)

seventh

Classic Blues Transition

X••••O

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 3 • 2 • 3 • 1 • 0

Standard C Major shape + Pinky on 3rd str (3rd fret)

E Dominant 7th (E7)

seventh

Rock & Blues Staple

O•O•OO

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: 0 • 2 • 0 • 1 • 0 • 0

Middle: 5th str (2nd fret), Index: 3rd str (1st fret), D-string open

A Dominant 7th (A7)

seventh

Open 2-Finger Blues

XO•O•O

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 0 • 2 • 0 • 2 • 0

Middle: 4th str (2nd fret), Ring: 2nd str (2nd fret)

D Dominant 7th (D7)

seventh

Inverted Triangle

XXO•••

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • X • 0 • 2 • 1 • 2

Middle: 3rd str (2nd fret), Index: 2nd str (1st fret), Ring: 1st str (2nd fret)

B Dominant 7th (B7)

seventh

Essential Key of E Pivot

X•••O•

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 2 • 1 • 2 • 0 • 2

Middle: 5th (2nd), Index: 4th (1st), Ring: 3rd (2nd), Pinky: 1st (2nd)

C Major 7th (Cmaj7)

extended

Dreamy Lush Acoustic

X••OOO

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 3 • 2 • 0 • 0 • 0

Ring: 5th str (3rd fret), Middle: 4th str (2nd fret). Strings 3, 2, 1 open

D Suspended 4th (Dsus4)

extended

Classic Acoustic Tension

XXO•••

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • X • 0 • 2 • 3 • 3

Index: 3rd str (2nd fret), Ring: 2nd str (3rd fret), Pinky: 1st str (3rd fret)

A Suspended 4th (Asus4)

extended

Hymn & Anthem Lift

XO•••O

6(E)5(A)4(D)3(G)2(B)1(E)

Frets: X • 0 • 2 • 2 • 3 • 0

Index: 4th (2nd), Middle: 3rd (2nd), Ring: 2nd (3rd fret)

TEST YOUR TUNING HARMONY

Popular Chord Progressions Soundboard

The true test of a well-tuned guitar is how smoothly chords ring together. Tap the chords in sequence below to hear authentic transitions.

Pop Axis (I – V – vi – IV)

Key of C Major

The most famous 4-chord progression in modern music (Don't Stop Believin', Let It Be, Someone Like You).

→

50s Doo-Wop (I – vi – IV – V)

Key of C Major

Classic rock & roll retro progression (Stand By Me, Earth Angel, Every Breath You Take).

→

12-Bar Blues in E

Key of E Blues

Gritty Chicago and Texas acoustic blues turnaround with dominant seventh bite.

→

Folk Ballad (I – IV – V)

Key of G Major

Acoustic campfire standard found in hundreds of legendary folk and country classics.

→

🎵 Why Accurate Tuning is Essential for Sweet Chords

Acoustic Beating (Phase Clashing)

When two strings vibrate just 1 or 2 cents out of pitch, their harmonic waveforms collide, creating a disorienting pulsing sensation known as acoustic beating. Our sub-cent tuner eliminates beating so chords sound pure.

Equal Temperament & Fret Pressure

Modern guitars use 12-Tone Equal Temperament. Pressing strings too hard behind the fret bends them sharp. Once tuned with AllTuners.com, use light fingertip pressure right behind the fret wire.

The Major Third (Sweetening)

In open chords like E Major and C Major, the major third (G# and E) naturally wants to be slightly flatter than mathematical equal temperament. Test your chord with our soundboard to train your ear.

String Action & Intonation

If your open strings are in tune with the microphone, but chords played higher up sound sour, check your guitar's saddle intonation. Compare fretted 12th-fret notes with 12th-fret natural harmonics.

Moderato

120BPM

30 BPM (Largo)120 BPM (Moderato)300 BPM (Prestissimo)

Time Signature

Subdivision

Click Sound

Rhythm ModeNew

🚀 Speed Trainer ModeNew

Automatically increases tempo by +2 BPM every 8 measures to build picking speed.

Session Practice Time: 00:00

MUSIC THEORY REFERENCE

Standard Italian Tempo Markings

Classical and modern sheet music uses traditional Italian terms to define tempo and expressive feel:

Marking	BPM Range	Musical Context
Larghissimo	Very, very slow (under 24 BPM)	Extremely heavy slow passages
Largo	Slow and broad (40–60 BPM)	Ballads, slow blues solos
Adagio	Slow with expression (66–76 BPM)	Slow rock ballads, acoustic fingerpicking
Andante	Walking pace (76–108 BPM)	Folk strumming, medium pop songs
Moderato	Moderately (108–120 BPM)	Classic rock rhythm, dance pop
Allegro	Fast, bright, and quick (120–156 BPM)	Uptempo rock, punk, funk riffs
Vivace	Lively and brisk (156–176 BPM)	Fast country chicken picking, metal solos
Presto	Very fast (168–200 BPM)	Speed metal, bluegrass breakdowns
Prestissimo	Extremely fast (> 200 BPM)	Thrash metal, virtuosic shredding

🎸 Effective Metronome Strategies for Guitarists

1. The "Subdivision Discipline"

When playing fast alternate picking runs, internalize 16th notes instead of whole beats. Switching our metronome to 1/16 subdivision gives you micro-anchors to keep your pick hand locked in time without rushing.

2. Build Speed in Slow Increments

Never practice a guitar lick faster than you can play it perfectly. Set the metronome to 60 BPM and ensure zero fret buzz, clean pick attacks, and relaxed hand tension before speeding up.

3. The Backbeat Trick (Clicks on 2 and 4)

Set the metronome to half speed and treat clicks as the snare drum backbeat on beats 2 and 4. This forces you to generate your own downbeats and builds rock-solid groove pocket.

🧮 Live Frequency-to-Note Calculator

Type any frequency in Hertz (Hz) to determine its closest musical note and cents offset.

A4 = 440 Hz

Input Frequency (Hz)

Closest Pitch

E2(Target: 82.41 Hz)

Deviation

0.0 cents (In Tune)

Standard Guitar (EADGBE)

The universal concert guitar tuning. Speed of sound in air calculated at 20°C (343 m/s).

Launch Tuner →

String	Note & Octave	Frequency (Hz)	Period T (ms)	Wavelength λ (m)	MIDI	Listen

PHYSICS OF STRINGS

How Guitar String Frequency Works

The fundamental frequency of an open guitar string is governed by Taylor's formula (derived from Mersenne's laws of vibrating strings):

f = (1 / 2L) × √(T / μ)

1. String Length (L)

Standard guitar scale length is 25.5 inches (Fender) or 24.75 inches (Gibson). Pressing the 12th fret cuts the vibrating string length exactly in half (L/2), doubling the frequency (2f) and raising the pitch by exactly one octave.

2. String Tension (T)

Turning the tuning peg tightens the string, increasing tension (T). Because frequency is proportional to the square root of tension, tightening a peg makes the pitch go higher (sharp), while loosening lowers it (flat).

3. Linear Mass Density (μ)

Thicker strings have higher linear mass (μ). Notice why the low 6th E string (82.41 Hz) is thick and nickel-wound, while the 1st high E string (329.63 Hz) is thin plain steel. Greater mass slows the speed of transverse waves across the string.

🎸 Natural Harmonics & Fretboard Nodes

When you lightly touch a guitar string directly over a fret wire without pressing down onto the wood, you damp the fundamental frequency and isolate higher harmonic overtones (nodes):

12th Fret (1/2 node)

2nd Harmonic: 2x fundamental pitch (+12 semitones / 1 octave up). Perfect for setting bridge saddle intonation.

7th Fret (1/3 node)

3rd Harmonic: 3x fundamental pitch (+19 semitones / an octave plus a fifth). Pure natural fifth.

5th Fret (1/4 node)

4th Harmonic: 4x fundamental pitch (+24 semitones / 2 full octaves up). Clear, chime-like bell tone.

Guitar Tools & Practice Suite

C Major

G Major

D Major

E Major

A Major

F Major (Easy/Open)

E Minor (Em)

A Minor (Am)

D Minor (Dm)

B Minor (Bm)

G Dominant 7th (G7)

C Dominant 7th (C7)

E Dominant 7th (E7)

A Dominant 7th (A7)

D Dominant 7th (D7)

B Dominant 7th (B7)

C Major 7th (Cmaj7)

D Suspended 4th (Dsus4)

A Suspended 4th (Asus4)

Popular Chord Progressions Soundboard

Pop Axis (I – V – vi – IV)

50s Doo-Wop (I – vi – IV – V)

12-Bar Blues in E

Folk Ballad (I – IV – V)

🎵 Why Accurate Tuning is Essential for Sweet Chords

Acoustic Beating (Phase Clashing)

Equal Temperament & Fret Pressure

The Major Third (Sweetening)

String Action & Intonation

A Minor Pentatonic

How to Use Fretboard Scales for Guitar Solos

1. Target the Root Notes (Green Pins)

2. The Famous "Blues Note" (b5)

3. Relative Major vs. Minor

4. Connect Shapes Across the Neck

Standard Italian Tempo Markings

🎸 Effective Metronome Strategies for Guitarists

1. The "Subdivision Discipline"

2. Build Speed in Slow Increments

3. The Backbeat Trick (Clicks on 2 and 4)

🧮 Live Frequency-to-Note Calculator

Standard Guitar (EADGBE)

How Guitar String Frequency Works

1. String Length (L)

2. String Tension (T)

3. Linear Mass Density (μ)

🎸 Natural Harmonics & Fretboard Nodes