←
?
Put your fingers on the fretboard below
Dots show
1 index2 middle3 ring4 pinky(fretting hand)

Click where your fingers go (one note per string). Click the O / βœ• markers on the left to switch a string between open and muted. Click a dot again to remove it. High e is at the top, the same way tab is written. Numbers on the dots show which finger to use. All 24 frets of your S621 are here, with the offset dot inlays.

Look up a chord shapeβ–Ύ

Chord detector

–
Strum a chord and let it ring

Where your fingers probably are

waiting for sound

For a chord, it takes the notes it hears plus the lowest note and works out the most natural shape. For a single note (riffs, solos), every place that note can be played glows, and the one nearest where your hand already is gets highlighted. A pickup can't tell which string a note came from, so this is a best guess.

⏱️ One-minute changesβ–Ύ

The quickest way to get fast at changing chords: switch between two chords as many times as you can in a minute. Fretlab listens and counts every clean change. A minute a day on the changes your songs need, and you'll watch the number climb.

0
changes
⇄
Best –Last time –

⚑ Power chords (the "5" chords)β–Ύ

A power chord is just two notes: the root (the note it's named after) and the note a fifth above it. That's where the "5" in F5 or G5 comes from. Often the root is doubled an octave higher too.

There's no third, so a power chord is neither major nor minor. That means it fits over almost anything. It also stays tight and punchy with lots of distortion, where full chords turn to mush. That's why rock, punk and metal use them everywhere.

The best bit is that it's one shape you move around. The fret your first finger is on tells you the chord.

Find any power chord

Root on
G5

Tips

  • Only let 2–3 strings ring. Let your first finger lightly touch the strings it isn't pressing so they stay quiet, and keep your strum small.
  • Palm muting: rest the edge of your picking hand on the strings right by the bridge for that tight "chug" sound.
  • Moving between chords: keep your hand in the same shape and slide it. Relax your grip between chords.
  • Your sound: use the bridge pickup (switch position 5) and some gain.turn the gain up on the amp.
  • Drop D trick: tune your low E down to D (pick Drop D at the top) and power chords on the bottom three strings become one finger laid flat.

Power chords on Ultimate Guitar

Play any song's chord sheet as power chords. A small add-on puts a switch on Ultimate Guitar's chord sheets. ⚑ Power turns every chord into its power chord (Em7 becomes E5, G/B becomes G5). 🎸 Normal keeps the chords as they are. Either way, hover over or tap a chord to see FretLab's shape for your tuning, and the button under the switch lists every chord in the song. Open a song's Chords (Ultimate Guitar) button here and the sheet uses the tuning you've picked in FretLab.

  1. Add 🧩 Tampermonkey to Chrome. It's a free extension that runs small add-ons like this one.
  2. Go to chrome://extensions, press Details under Tampermonkey, and turn on Allow User Scripts. Chrome needs this for any add-on of this kind. On an older Chrome without that switch, turn on Developer mode at the top right of the page instead.
  3. ⚑ Install the power chord add-on then press Install on the Tampermonkey page that opens.

Do this once on each computer. The switch sits on the right-hand edge of the sheet, and the button under it opens your tuning, the capo, and every power chord in the song.

⚑ Power chord challenge

?

Plug in, press Start, and play the power chord shown. Fretlab listens and moves on when it hears it. How fast can you get?

Score 0Last –Average –Best –

Songs made of power chords

πŸ”Ί Triads (three-note chords)β–Ύ

A triad is a chord's three notes: the root (R, the note it's named after), the 3rd and the 5th. A major chord and a minor chord only differ in the 3rd: lower it one fret and major becomes minor. Your big open shapes are triads too, just with notes doubled up.

Played on three neighbouring strings, each chord makes three little shapes, one for each note at the bottom (the inversions). They join up all the way along the neck, so you can play any chord almost anywhere, with no barres.

That's how rhythm players add those little chord stabs and fills, and the triad's notes are the safest ones to land on in a solo.

On the fretboard the yellow dot is the root and the green one is the 3rd, the note that makes it major or minor. The blue rings are the same three notes further along the neck: the other shapes.

Find any triad

Strings
Dots show
C

Play a song with triads

Pick a song and Fretlab picks a shape for each of its chords on the strings above, each one as close as it can to the last, so your hand hardly moves. Tap a chord to see it on the fretboard.

Start near

Tips

  • Start on the top three strings (G B e) with C, F and G, or Am, C, D and Em. Learn one shape of each, then the next one up.
  • Only those three strings should ring. Pick them, or pluck them with your thumb and two fingers, and let your fretting hand rest lightly on the others.
  • Say the notes as you go: "root, 3rd, 5th". Soon you'll see the root inside every shape, and know where the next shape up starts.
  • Major to minor: find the green 3rd and move just that note down a fret.
  • Over a song: let someone else (or the play-along) strum the big chords, and play the triads higher up for a second guitar part.

πŸ’ͺ Barre chord doctor

Hold a barre chord and pick it one string at a time. Fretlab listens to each string and tells you which ones ring clearly, which buzz or sound dead, and what to change with which finger.

Shape
F
Hold the chord, press Check, and pick each string when it lights up.

    Tips for barre chords

    • Use the side of your first finger, rolled slightly towards the headstock: it's bonier and flatter than the soft front.
    • Right behind the fret wire, not in the middle of the fret. The closer, the less you need to squeeze.
    • Pull, don't pinch. Let the weight of your arm pull the finger back into the neck, with your thumb behind the neck about level with your middle finger. A death grip makes it worse.
    • Build it up: barre just the top two or three strings first, then add one string at a time.
    • Little and often: a minute or two several times a day beats an hour once. It does get easier as your hand gets stronger.

    πŸͺœ Slash chords

    A slash chord is a chord you know with a different note at the bottom. Before the slash is the chord; after it is the bass note, the lowest note you play. So Asus2/G is your Asus2 with a G underneath, and D/F# is a D with an F# underneath.

    Usually your fingers hardly change: keep the chord and add one note under it, or lift a finger so a lower string rings. Pick one below and Fretlab shows which fingers stay, which move, and where the new one goes.

    Pick a slash chord

    D/F#

      Bass walks

      Most slash chords are there to make the bass walk from one chord to the next, a note at a time. Press Play to hear each one: the bass note comes first, then the chord. Tap a slash chord to see how to finger it.

      Tips

      • The bass note has to be the lowest note you hit. Aim your strum at its string, and don't catch the strings under it.
      • Play the pair: switch slowly between the plain chord and the slash chord. Usually only one finger moves, so learn which one.
      • Thumb over the top: for an F# or G on the low E (D/F#, G/F#), let the neck sit in your palm and press the low E with your thumb. The side of the thumb also keeps the A string quiet.
      • Bass, then strum: pick the bass note on the beat, then strum the rest. That makes a bass walk easy to hear and keeps it in time.
      • Can't reach it yet? Play the plain chord. Fretlab already counts Asus2 for Asus2/G, and the band's bass player covers the low note in the play-along.

      πŸ–οΈ CAGED

      The five open chord shapes C, A, G, E and D, slid up the neck, fit together like jigsaw pieces: the top of one shape is the bottom of the next. So every chord can be played in five places, and they always come in the order C-A-G-E-D up the neck. It's the map that joins your open chords, barre chords, triads and scales together.

      How to use it

      • Start with C major and play the five shapes in order up the neck. Notice that each one starts where the last one ended.
      • Find the roots (the ringed dots) in each shape: they're your landmarks.
      • The E and A shapes are the barre chords you know. The others fill the gaps between them.
      • Solo in a shape: the pentatonic boxes sit around these same shapes. Box 1 of A minor pentatonic wraps around the E-shape Am barre at fret 5, so pick Minor and A here to see it.

      πŸ”‘ Keys and chord families

      Ever wondered why G, C, D and Em keep turning up together? Each key has a family of seven chords, numbered I to vii, and most songs stay inside one family. Know the numbers and you can work out songs faster, and play any song in any key.

      Famous progressions

      What key is my song in?

      🎲 Find the noteβ–Ύ

      Learn where the notes are on the neck. Fretlab names a note and a string: find it, play it, and it moves on as soon as it hears it. How many can you find in a minute?

      Press Start, then find each note as it comes up.
      0
      found
      1:00
      Best –Average – a note

      🎼 Pentatonic scales

      Five notes that sound good over nearly any rock, blues or pop song in their key. Learn them as five box shapes that join up along the neck, then jam with the band. The gold dots are the root: the note that sounds like "home".

      Box
      Dots show

      Jam with the band

      Backing

      How to use it

      • Learn box 1 first. Play it up and down slowly, saying where the roots are. Then make up little phrases inside it.
      • End your phrases on a root (gold) and they sound finished. Notes outside the scale are fine if you're passing through them.
      • Minor or major? For bluesy and rock songs, use the minor pentatonic of the key. For happy, country or pop songs, try the major. The same shapes do both: A minor pentatonic has the same notes as C major pentatonic.
      • Then add box 2, which joins on above it, and slide between the two.

      πŸ₯ Timing trainer

      Play along with the click, one note or strum on each beat (or two to a beat), and Fretlab shows how early or late each one was. Good timing matters more than speed: it's what makes a band sound tight.

      80bpm
      Play
      Bars
      earlyon the beatlate

      Best: –. Delay allowance:

      🀘 Bends and vibrato

      Most players bend short: not quite up to the note. Bend while Fretlab draws your pitch, and aim for the green band. Or hold a note with vibrato and see how even it is.

      String
      Bend

      Tips

      • Bend with three fingers: the ring finger on the note, with the middle and first fingers on the same string behind it, all pushing together.
      • Push from the wrist, turning it like opening a door, rather than pushing with the fingers alone. Hook your thumb over the top of the neck.
      • Hear the target first. Play the note two frets up, then bend until your bent note matches it.
      • Vibrato: small, even wobbles from the wrist, about 5 or 6 a second. Slow and wide sounds bluesy; fast and narrow sounds nervous.

      πŸ‘‚ Ear training

      Train your ears to recognise what you hear. It's the skill behind working out songs by ear, and it makes everything else easier.

      Press β–Ά to start.

      🀌 Fingerpicking

      Pick the strings with your fingers instead of a pick. p = thumb, i = first finger, m = middle, a = ring. The thumb looks after the bass strings, and each finger looks after one of the top three strings.

      Chords

      Tips

      • Rest your ring or little finger lightly on the guitar's top if it helps you stay steady (lots of folk players do).
      • Let the thumb move on its own: practise the bass notes alone until they're automatic, then add the fingers.
      • Pluck, don't pull: each finger moves into the palm, from the knuckle, and lets the string ring.
      • Slow and even first: every note the same loudness. Speed comes later.

      πŸ”₯ Warm-ups

      A few minutes of these before you play makes your fingers looser, stronger and more accurate. Fretlab follows along note by note.

      60bpm
      Fastest clean: –

      Tuner

      Play one string at a time
      Press a string name to hear its note.

      Scope

      Looper

      empty

      Press Record, play a few bars, then press again to close the loop. It starts repeating straight away. Press again to overdub a new layer on top. Tip: count yourself in with the metronome.

      Metronome

      90

      Click Tap in time with a song to match its speed. Practise new chord changes slowly, then nudge the BPM up.

      SOUNDS i
      FRETLAB 50
      EVEN
      AMP i

      🎧 Use headphones plugged into your laptop. Laptop speakers sound thin and the browser adds a little delay (shown in the input bar). Good starting points for your Quantum humbuckers: bridge pickup with the Lead or Metal channel, neck pickup with Clean, chorus and reverb.

      πŸ‘ͺ Family

      Everyone's songs and play-along scores, side by side. Click a song to open it in the Songbook. Each person's own Fretlab keeps their card up to date.

      Ibanez S621QM
      S Series Β· Dragon Eye Burst Β· two Quantum humbuckers Β· fixed bridge Β· 24 frets

      A thin, light S Series body made of meranti with a quilted maple top, and a fast, slim Wizard III neck. Two passive humbuckers and a 5-way switch give you everything from glassy cleans to heavy rock. The fixed bridge (no whammy bar) keeps tuning stable and makes drop tunings and string changes easy.

      Body
      Meranti, quilted maple top
      Neck
      Wizard III maple
      Fretboard
      Rosewood, offset white dots
      Frets
      24 jumbo
      Scale length
      648 mm (25.5")
      Radius
      400 mm
      Neck width
      43 mm nut Β· 58 mm 24th fret
      Neck thickness
      19 mm 1st Β· 21 mm 12th fret
      Pickups
      Quantum (H) neck + bridge, passive
      Controls
      Volume, tone, 5-way switch
      Bridge
      F106 fixed, 10.5 mm spacing
      Hardware
      Black
      Factory strings
      D'Addario EXL110 (10–46)
      Factory tuning
      Standard E A D G B E

      Your pickup switch

      Position 1 is with the switch pushed toward the neck.

      Volume is the knob nearest the strings and tone is the one below it. Rolling the tone knob back makes the sound darker and smoother, which is lovely on the neck pickup. Rolling the volume back a little cleans up a distorted sound without touching the amp.

      Pickup ear test

      Fretlab strums a chord through one of your five switch positions. Can you tell which one? It's a model of your two humbuckers, not a recording. It copies where each coil sits along the string, which is the main reason the positions sound different. It plays through the amp if the amp is on, and on its own if not.

      Strings & tuning

      String6th5th4th3rd2nd1st
      NoteEADGBE

      Changing strings (fixed bridge)

      1. Change one string at a time. That keeps tension on the neck even.
      2. Unwind the old string and pull it out through the back of the body.
      3. Feed the new string in from the back through its hole (ferrule), so the ball end sits at the back. Then bring it up over the saddle.
      4. Pull it to the tuner and leave about 5–7 cm of slack past the post. Wind 2–3 wraps, top to bottom, without the string winding over itself.
      5. Tune up to the note. If you go too high, drop below it and come back up, which helps it stay in tune. Gently stretch the new string and retune a few times.
      6. Snip off the spare end.
      Replace strings when they look rusty or dull, sound dead or buzzy, or won't stay in tune. Bent or kinked strings won't sound right, so don't reuse them.

      String tracker

      –

      Setup: what "good" looks like

      String height (action) at the 14th fret

      1.5–1.7 mmhigh E (1st)
      2.0–2.2 mmlow E (6th)

      Measure from the top of the 14th fret to the bottom of the string, with the guitar in tune. The strings in between should step up gradually. Each saddle on your F106 bridge has two small hex screws that raise and lower it. Too high and it's hard to play. Too low and you get buzzing and notes that die quickly.

      Neck bow (relief)

      0.3–0.5 mmgap at the 8th fret

      Press the string at the 1st fret and at the fret where the neck meets the body, then check the gap at the 8th fret. Do this on both E strings. The truss rod sets the bow. Turn it a quarter turn at most each time, retune and recheck. Loosening adds bow and tightening flattens the neck.

      Intonation

      Tune up, then compare the 12th-fret harmonic with the fretted 12th-fret note on the tuner. If the fretted note is flat, move that saddle toward the neck. If it's sharp, move it away. Use a Phillips (+) screwdriver on the screw at the back of the bridge. Recheck this after changing string gauge or switching to drop tunings.

      Never force anything on the neck, because that can damage it. If you're not sure, a guitar shop "setup" is quick and cheap. Very low tunings, or strings not made for electric guitar, can break parts.

      Tuning down: strings for each tuning

      Lots of your songs use other tunings. Your fixed bridge makes switching easy: there are no whammy-bar springs to rebalance. Lower tunings make the strings looser, though, so heavier strings keep them feeling tight. These are Ernie Ball's suggestions for a 25.5" (648 mm) scale like yours.

      After changing tuning or string gauge, check…

      • Intonation: Ibanez says to reset it whenever you change gauge or tuning. Use the 12th-fret check in the setup card above.
      • Neck bow: different tension pulls the neck differently, so recheck the gap at the 8th fret and give the truss rod a small turn if needed.
      • Buzzing: looser strings swing wider. If it buzzes after tuning down, raise the saddles a little or go up a gauge.
      • The nut: much thicker low strings (.056 and up) can stick in the nut slots. They "ping" while you tune and won't settle. A shop can widen the slots in minutes.
      Ibanez warns that extreme tunings, or strings not made for electric guitar, can break parts.

      Pickup height & tools

      Pickup height

      Ibanez doesn't publish exact figures: its manuals say to set pickups by ear. These starting points come from DiMarzio's and MusicNomad's guides. Hold the string down at the 24th fret and measure from the top of the pickup's pole piece to the bottom of the string.

      ~1.5 mmbridge, high E
      ~2.0 mmbridge, low E
      ~2.4 mmneck, both
      1. Set the bridge pickup first, using the two screws either side of it (Phillips). Clockwise raises it and anticlockwise lowers it. Turn both a half turn at a time.
      2. Then set the neck pickup by ear. Flick between positions 1 and 5 while you play, and adjust until they're about as loud as each other.
      3. Too close and the magnets pull on the strings: notes warble or sound out of tune, buzz and die away sooner. Lower gives a clearer, more open sound with a bit less output.

      Tools for each job

      IntonationPhillips (+) screwdriver, in the screw at the back of each saddle
      String heightSmall hex key in the two screws on each saddle (usually 1.5 mm on Ibanez bridges)
      Neck bowThe hex key or socket wrench that came with the guitar, on the truss rod nut (usually 4 mm on Ibanez)
      Pickup heightPhillips (+) screwdriver
      MeasuringA steel ruler with 0.5 mm marks, and Fretlab's tuner
      StringsString winder and cutters

      From Ibanez's Fixed Bridge guide and Maintenance Manual. The usual key sizes aren't printed in Ibanez's guides, so try the key before you turn anything.

      Care & cleaning

      • After every session: wipe sweat off the strings (including underneath), frets, bridge and nut with a dry cloth. That's the best way to stop rust.
      • Stubborn grime on metal parts: use a soft cloth with a tiny drop of oil.
      • Body (gloss finish): use guitar polish on a soft cloth. Never use household sprays, solvents or anything abrasive.
      • Rosewood fretboard: it's unfinished wood, so a couple of times a year (handy when changing strings) wipe on a little fretboard or lemon oil and work it to the edge of the frets.
      • Batteries: none. Your Quantum pickups are passive, so there's nothing to charge or replace.
      • Big temperature and humidity changes move the neck slightly. If it suddenly starts buzzing, check the neck bow (above).

      Summarised from Ibanez's S Series wiring sheet, Maintenance Manual and Fixed Bridge guide. The full documents are linked at the top of this page.

      🎁
      Your Fretlab WrappedYour top songs, streaks, best scores and guitar personality, as a story.
      Watch β–Έ
      0songs you can play
      0one chord away
      0chords known

      Learn nextβ–Ύ

      These chords unlock the most new songs. Click a diagram to hear it.

      πŸ“’ Practiceβ–Ύ

      ✨ Your ideas β–Ύ

      🎁 Shared with you β–Ύ

      Songs the family sent you with 🎁 Share, newest first. Click one to open it, or βœ• to take it off the list.

      🎡 Request a song β–Ύ

      Song missing? Add it here and it's saved until it goes in the songbook. Signed in, everyone sees everyone's requests, with who asked.