Half Step Down Tuner Online
Take all six strings down a semitone to Eb Ab Db Gb Bb Eb. The tuner hears each string you pluck, matches it to its flat target automatically, and every peg can sound its reference tone — handy when all six strings need to move and none by much.
Tap a peg to hear its note and start tuning — the browser will ask for mic access once. Sound is analyzed on your device, never uploaded.
How to Tune Half a Step Down
Six strings, one semitone each, always loosening.
Open the Mic
Press the button and grant microphone access. The six pegs read Eb Ab Db Gb Bb Eb — every one a half step under its standard note.
Loosen, Low to High
Start on the thickest string and pluck as you turn — the tuner picks out whichever string you're on and measures the gap to its flat target in cents.
Collect Six Checks
A small, slow turn drops each string the single semitone it needs. When a needle centers and holds, that peg checks off — six checks and you're in Eb standard.
Six Small Moves, Kept Honest
Flat-note targets, cent-level readouts, and a running scoreboard.
Flat Pegs, Found Automatically
Pluck any string and the tuner matches it to its flat target — Eb2 through Eb4 — without you selecting a thing. Tap a peg to pin one manually.
A Checklist for All Six Drops
Every string needs to move a semitone, so keeping score matters. Each peg earns a green check as its string settles, and six checks means Eb standard, done.
Semitone-Sized Guidance
A half step is a small turn — easy to blow past. The cents readout shows exactly how close you are, and the direction is spelled out so you never loosen the wrong way.
Reference Tones for Every Flat
Eb, Ab, Db, Gb, Bb aren't pitches most players carry in their head. Each peg plays its exact target tone, so you can drop by ear and verify with the needle.
Analyzed, Never Saved
The tuner measures the mic signal on your device and discards it as it goes. No audio is stored or sent anywhere, and Stop shuts the mic off completely.
Any Browser, Any Stage
Runs on phones, tablets, and laptops in Chrome, Safari, Firefox, and Edge — Eb standard is reachable wherever the gig happens to be.
The Mic Listens, Nothing Keeps
Pitch detection runs entirely inside your browser: audio frames are measured the moment they arrive and destroyed the moment they’re measured. No recording exists to store, upload, or leak — and Stop releases the microphone instantly.
No Recording
Nothing is ever written to disk
No Upload
Zero audio leaves your device
You're in Control
One press ends the mic session
Who Plays in Eb, and Why
Half a step covers a surprising amount of musical ground.
Classic Rock Covers
An enormous slice of rock and blues history was cut in Eb — match the records
Backing a Singer
Shift every song down a half step without relearning a single chord shape
Easier Bends
Slightly slacker strings make bends and vibrato friendlier on the fingers
Heavier Strings
Half a step of relief lets thicker gauges feel like your usual set
Playing Along by Ear
When a song sounds 'a fret off' from your guitar, it's probably in Eb
Jam Nights
Get all six strings down — and agreed on — before the first count-in
Eb Standard: Same Guitar, Half a Step Lower
Tuning half a step down means lowering every string one semitone: Eb2 Ab2 Db3 Gb3 Bb3 Eb4, low to high. Players call it Eb standard, Eb tuning, or simply half step down — all the same thing. Crucially, the intervals between strings never change, so the fretboard you already know is untouched. Every chord shape, every scale box, every lick lands exactly where it always has; the whole instrument just speaks a half step lower, a shade darker and looser than concert-pitch standard.
From standard, string by string
Every peg turns the same direction: loosen. Work low to high — E down to Eb, A to Ab, D to Db, G to Gb, B to Bb, high E to Eb — and remember a semitone is a genuinely small turn of the peg, usually less than a quarter rotation. Pluck continuously while you turn so the tuner can follow the string, and because the drop is so narrow, auto-detect may briefly hesitate between the old note and the new one; tapping the peg you’re working on pins the target. Once all six have their green checks, strum a big open E-shape chord — if any string sounds sour against the rest, its needle will say so in two seconds.
Why guitarists have always loved Eb
The tension drop is small but real: strings bend further with less effort and vibrato widens naturally, which is why the tuning became a signature of blues and hard-rock lead playing. Singers get the other classic benefit — every song shifts down a semitone without the guitarist relearning anything, which can rescue a whole setlist for a tired voice. And then there’s history: a huge share of canonical rock, blues, and metal records were tracked in Eb, so playing along in standard leaves you stubbornly a fret out. If a record always sounds “between frets” against your guitar, this tuning is almost always the answer.
Nothing to relearn — that’s the point
Unlike open tunings or DADGAD, Eb standard asks nothing new of your hands. The same fingering that made an E chord now makes an Eb chord; the same pentatonic box in the fifth position now sounds in Db minor instead of D minor. That makes it the rare alternate tuning with zero learning curve — the trade-off is purely sonic and physical, never mental. It’s also why bands live in it full-time: everything transfers, both directions, every night.
Getting six clean semitones through a mic
Because every string moves, discipline beats speed. Pluck one string at a time and let it ring clean — never strum while tuning, since the tuner tracks a single pitch. Give the wound strings a firm attack; the low Eb at 77.8 Hz reads steadiest when plucked over the neck. After finishing all six, make one more quick pass: lowering the tension across the whole neck lets it relax slightly, which can pull the first strings you tuned a hair sharp. The second pass takes thirty seconds and is the difference between close and correct.
Neighboring tunings worth knowing
Heading back to concert pitch? The standard-tuning guitar tuner brings all six strings back up. If a half step isn’t low enough, D standard continues the idea a full step down, while Drop D lowers only the sixth string for heavier riffing without touching the rest. And to see the flat notes themselves as raw frequencies while you tune, open the note identifier — it names whatever pitch it hears, flats included.
Six Flats Down? Roll Tape
Capture that darker Eb tone in the Notevibes Online Audio Editor — record in the browser, clean up the room, let it detect key and tempo, and export MP3 or WAV.
Free to try · No credit card required
Related Audio Tools
More free AI audio tools from Notevibes — same engine, no sign-up.
Guitar Tuner
Tune all six strings with your mic — auto string detection.
D Standard Tuning
Tune every string a whole step down to D G C F A D.
Drop D Tuning
Tune to D A D G B E — one string down, big low end.
Drop C Tuning
Tune to C G C F A D — the heavy low-end workhorse.
Open G Tuning
Tune to D G D G B D — the slide and blues tuning.
Pitch Detector
Read the live pitch of any sound — Hz, note, and cents.
Half Step Down FAQ
How do I tune a half step down?
Lower every string one semitone from standard: E→Eb, A→Ab, D→Db, G→Gb, B→Bb, E→Eb, always by loosening. Start the tuner, work from the thickest string to the thinnest, and let each peg's needle center and turn green before moving on. All six strings move, so the per-peg checklist is your friend.
What is half step down (Eb standard) tuning?
It's standard tuning shifted down one semitone on every string — Eb2 Ab2 Db3 Gb3 Bb3 Eb4. Because the intervals between strings are untouched, it's still 'standard' in every practical sense; the whole guitar simply sounds a half step lower. You'll see it written as Eb standard, Eb tuning, or half step down.
Do chords and scales change in Eb standard?
No — that's the whole appeal. Every chord shape, scale pattern, and lick works exactly as it does in standard tuning; only the sounding pitch moves down a semitone. An E-shape chord now sounds as Eb, an A-shape as Ab. There is nothing new to learn under your fingers.
Why do so many bands tune half a step down?
Three classic reasons: slightly lower string tension makes big bends and heavy vibrato easier; the lower pitch sits better for many singers, especially across a long set; and the sound itself — a little darker and thicker — became part of the blues and hard-rock vocabulary because so many landmark records were made this way.
The needle jumps between two notes while I'm lowering a string — why?
Half a step is the narrowest drop there is, so mid-turn your string hovers between its old note and the flat target, and auto-detect can wobble between them. Tap the peg you're working on to lock it; the tuner will then read everything relative to that one flat note.
Is this Eb tuner free, and does it record me?
It's completely free — no sign-up, no download — and it never records. Audio frames are analyzed on your device the instant they arrive and discarded just as fast; nothing is uploaded, and pressing Stop releases the microphone immediately.