How to Tune a Guitar Down a Half Step
Updated Nov 12, 2026 · By 
Jonah Mercer · Editorial policy
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Tuning down a half step lowers each string by one semitone, so standard tuning E A D G B E becomes Eb Ab Db Gb Bb Eb. Use a chromatic tuner, tune each string down to its new note, and check each string twice. The KLIQ UberTuner-MAX and the Snark tuners read each string as you tune.
Know the new notes first
A half step down moves each string to the next note below it. Standard tuning E A D G B E becomes Eb Ab Db Gb Bb Eb, from the low string to the high string. Write the six new notes down or keep them in view while you tune, so you aim at the right note on each string.
Set the tuner to chromatic mode
A chromatic tuner reads any note, so it shows Eb, Ab, Db, Gb and Bb as well as the natural notes. Clip the tuner on the headstock and set it to chromatic mode. The KLIQ UberTuner-MAX has a chromatic mode with an octave display that shows which octave you are tuning in. The Snark SIL-RED is a chromatic tuner with a display that rotates 360 degrees.
Tune each string down to its note
Start with the low E string and work toward the high E string. Pluck the string, watch the tuner, and turn the tuning peg down until the tuner shows the new note for that string. Tune down to the note rather than up to it, so the string settles at the right pitch.
Check each string again
Lowering one string changes the pull on the neck, so the strings you tuned first can drift flat. Go through all six strings a second time and bring any string that reads flat back up to its note. Repeat the check until each string holds its note on the tuner.
Use transpose settings if your tuner has them
Some tuners shift the reading by a half step for you. The KLIQ UberTuner-MAX has transpose settings for Bb, Eb, F and D, and a calibration range of 430 to 450 Hz. The Snark ST-8HPT offers pitch calibration at 432 and 442 Hz. If your tuner has a transpose setting, set it to Eb and tune as if the guitar were in standard tuning.
What you need
KLIQ UberTuner-MAX USB Rechargeable Clip On Guitar
A rechargeable clip-on chromatic tuner with an octave display and transpose settings for Bb, Eb, F and D, so it reads each string a half step down.
- Chromatic mode
- Rechargeable
- Tuner type: Clip On
Snark SIL-RED Silver Snark Chromatic Tuner Red
A chromatic tuner with a high resolution display that rotates 360 degrees, in red.
- Chromatic mode
Snark ST-8HPT High Precision Rechargeable Clip-On Tuner
A rechargeable clip-on tuner with a bright screen, an anechoic sound shield for easier tuning, and pitch calibration at 432 and 442 Hz.
- Rechargeable
- Tuner type: Clip-On
These come from our ranked list Best Tuners, which compares them spec by spec.
Frequently asked questions
What notes do I tune to a half step down?
Eb Ab Db Gb Bb Eb, from the low string to the high string. Each string drops one semitone from standard tuning E A D G B E.
Do I need a chromatic tuner to tune down?
Yes, a chromatic tuner reads flat notes like Eb and Bb, while a standard guitar tuner only reads E A D G B E. The KLIQ UberTuner-MAX and the Snark SIL-RED both have a chromatic mode.
Why do my strings go flat after I tune down?
Lowering the strings changes the pull on the neck, so strings you tuned first can drift. Tune through all six strings a second time and bring any flat string back to its note.
Ranked guitar tuners lists
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