3 Ways To Tune A Guitar Without A Tuner - WikiHow

Skip to ContentQuizzes
  • Home
  • Random
  • Browse Articles
  • Quizzes & Games
  • All QuizzesHot
  • Love Quizzes
  • Personality Quizzes
  • Fun Games
  • Dating Simulator
  • Learn Something New
  • Forums
  • Courses
  • Happiness Hub
  • Explore More
  • Support wikiHow
  • About wikiHow
  • Log in / Sign up
Terms of Use wikiHow is where trusted research and expert knowledge come together. Learn why people trust wikiHow 3 Easy Methods for Tuning Your Guitar by Ear PDF download Download Article A guitar tuning guide for when you don't have a tuner Co-authored by Michael Papenburg and Dan Hickey

Last Updated: June 18, 2025 Fact Checked

PDF download Download Article
  • The Fifth Fret Method
  • |
  • Using Harmonics
  • |
  • Using the Octave Method
  • |
  • Video
  • |
  • Expert Q&A
  • |
  • Tips
|Show more |Show less X

This article was co-authored by Michael Papenburg and by wikiHow staff writer, Dan Hickey. Michael Papenburg is a Professional Guitarist based in the San Francisco Bay Area with over 35 years of teaching and performing experience. He specializes in rock, alternative, slide guitar, blues, funk, country, and folk. Michael has played with Bay Area local artists including Matadore, The Jerry Hannan Band, Matt Nathanson, Brittany Shane, and Orange. Michael currently plays lead guitar for Petty Theft, a tribute to Tom Petty and the Heartbreakers. There are 9 references cited in this article, which can be found at the bottom of the page. This article has been fact-checked, ensuring the accuracy of any cited facts and confirming the authority of its sources. This article has been viewed 326,726 times.

Whether you’re getting ready to practice, jam with friends, or play a sold-out venue, your guitar needs to be in tune—but what if your tuner is lost or broken? It’s totally possible to tune your guitar by ear without a tuner, especially if you’re playing solo. All you have to do is pick one string as a reference and adjust your other strings relative to that one (just make sure to use an in-tune reference note if you plan to play with other people). We’ll show you how to do just that with the popular fifth fret method, as well as how to use harmonics and octaves to ensure your guitar sounds rich, warm, and pitch-perfect.

Things You Should Know

  • To use the fifth-fret method to tune your guitar, tune your 6th string (low E) to a reference pitch, or leave it where it is if you’re only tuning your strings relative to each other.
  • Play the 5th fret on the 6th string, then tune the open 5th string (A) to match pitch. Continue tuning the 5th fret from the A string to the D string and so on.
  • The only exception is for the 2nd string (B). Play the 4th fret on the 3rd string (G) to tune the open B string instead of the 5th fret.

Steps

Method 1 Method 1 of 3:

Tuning Your Guitar with the Fifth Fret Method

PDF download Download Article
  1. Step 1 Fret... 1 Fret the low E string at the fifth fret. The low E string, also called the sixth string, is the lowest and thickest string on your guitar. If you're holding your guitar in the playing position and looking down, it will be the top string closest to you.[1]
    • Pluck the E string while holding the fifth fret. The note at the fifth fret of the low E string is the same note, A, as the open A string (the next string over from the low E).
    • It isn't necessary to first tune your low E string. Even though your guitar may not be tuned to concert pitch, the strings will be tuned relative to each other. Anything you play will “sound right” as long as you're playing by yourself and not with another instrument tuned to concert pitch.
  2. Step 2 Match the open A string to the low E string at the fifth fret. 2 Match the open A string to the low E string at the fifth fret. Listen to the pitch coming from the low E string when you play the fifth fret, then play the open A string. Tune the open A string up or down until it matches the pitch coming from the low E string.[2]
    • If the open A string sounds higher than the A you play at the fifth fret of the low E string, loosen the string to bring the pitch down, then tune it back up.
    • To adjust the A string, slowly turn the tuning peg or head connected to the A string on the headstock. Tightening the string raises the pitch, while loosening the string lowers the pitch.
    • The string pitches are the same on both acoustic and electric guitars, so you can use this method to tune electric guitars without a tuner as well.
    Advertisement
  3. Step 3 Repeat the same process to tune the D and G strings. 3 Repeat the same process to tune the D and G strings. Once you have the A in tune, fret it at the fifth fret and pluck it. This is a D. Pluck the open D string and tune it up or down to match the fifth fret on the A string.[3]
    • When the D string is in tune, fret it at the fifth fret to play a G. Pluck the open G string and compare. Tune it up or down to match the sound.
    • The interval between the E, A, D, and G strings is called a perfect fourth. This interval is 5 half steps wide, or 5 frets on a guitar string.
  4. Step 4 Fret the G string at the fourth fret to tune the B string. 4 Fret the G string at the fourth fret to tune the B string. The process changes somewhat for the B string because there is a shorter interval between the notes G and B. Fret the G string at the fourth fret to play a B. Pluck the open B string and compare the sounds.[4]
    • Tune the open B string up or down until it matches the sound produced on the G string.
    • The interval between the G and B strings is called a major third, which is only 4 half steps wide (or 4 frets on a guitar string) instead of 5.
  5. Step 5 Return to the fifth fret on the B string to tune the high E string. 5 Return to the fifth fret on the B string to tune the high E string. Once you have the B string in tune, fret it at the fifth fret and pluck to play a high E. Tune the open high E string up or down to match the pitch coming from the B string.[5]
    • If the open high E string is higher in pitch than the high E played on the B string, tune it down and then bring it up to pitch gradually. The high E string is thin and has a lot of tension, so it may snap easily.
  6. Step 6 Strum a few chords to test your tuning. 6 Strum a few chords to test your tuning. If you're getting ready to play a particular song, check your tuning with chords from that song to make sure it will sound okay. Listen carefully and adjust up or down as needed.
    • Play a tune-checking chord made up of Es and Bs to tell if your guitar is in tune with itself. Bar the fourth and fifth strings with your index finger at the second fret. Fret the third string at the fourth fret and the second string at the fifth fret. Play both the first and sixth strings open. If your guitar is in tune, you will only hear 2 notes (Es and Bs in multiple octaves).[6]
  7. Advertisement
Method 2 Method 2 of 3:

Using Harmonics to Tune Your Guitar

PDF download Download Article
  1. Step 1 Practice touching any string lightly to play harmonics. 1 Practice touching any string lightly to play harmonics. Natural harmonics can be played at the twelfth, seventh, and fifth frets. To play a harmonic, touch the string just above the fret, without applying any pressure. Strike the string with your picking hand, releasing the string at the fret at almost the same time you pluck it.[7]
    • If you've never experimented with harmonics before, it may take a little practice before you can play them consistently. When you hear a bell-like sound, you've done it right.
    • The harmonics method is a relatively quiet method of tuning. You may not be able to use it if you're in a place with a lot of background noise.
    • A natural harmonic is an isolated overtone of a vibrating open string (all instruments produce overtones, which combine to form the unique tone of each instrument). The twelfth, seventh, and fifth frets isolate the octave, perfect fifth, and perfect fourth overtones, respectively.
  2. Step 2 Compare the E string's fifth harmonic to the A string's seventh harmonic. 2 Compare the E string's fifth harmonic to the A string's seventh harmonic. Play the harmonic on the fifth fret of the low E string, then play the harmonic on the seventh fret of the A string. Listen carefully and compare the pitches. You may have to play them several times.[8]
    • Tune the A string up or down until its harmonic exactly matches the pitch of the harmonic played on the low E string.
    • If you haven't tuned your low E string to a reference note, your guitar will be tuned to itself but not necessarily tuned to concert pitch or to other instruments.
  3. Step 3 Repeat the same process with the D and G strings. 3 Repeat the same process with the D and G strings. Once your A string is in tune, play the harmonic on the fifth fret of the A string and compare it to the harmonic on the seventh fret of the D string. Tune the D string up or down as necessary to match the pitch.[9]
    • To tune the G string, play the harmonic on the fifth fret of the D string and compare it to the harmonic on the seventh fret of the G string.
  4. Step 4 Play the harmonic on the seventh fret of the low E string to tune the B string. 4 Play the harmonic on the seventh fret of the low E string to tune the B string. The harmonic on the seventh fret of the low E string produces the same pitch as the open B string when you strum it. You don't need to play harmonics on the B string; just pluck the open string.[10]
    • Tune the B string up or down until it matches the pitch perfectly.
  5. Step 5 Tune the high E string using the harmonic on the seventh fret of the A string. 5 Tune the high E string using the harmonic on the seventh fret of the A string. The process for tuning the high E string is similar to the process you used for the B string. The open high E string should match the pitch produced when you play the harmonic on the seventh fret of the A string.[11]
    • When you've tuned your high E string, your guitar should be in tune. Play a few chords to make sure everything sounds right.
    • The harmonics method is a great way to “fine-tune” your guitar after you’ve gone through a more robust tuning method, like the fifth fret method.[12]
  6. Advertisement
Method 3 Method 3 of 3:

Using the Octave Method to Tune Your Guitar

PDF download Download Article
  1. Step 1 Use a tuning... 1 Use a tuning fork or other reference pitch to tune your D string. If you want to get your guitar close to concert pitch but don't have a tuner, use a reference note to get one string perfectly in tune, then tune the other strings relative to that one. A piano or keyboard can also give you a reference note (for one string or for all six).[13]
    • If you find a reference note for the D string, you can tune both your low E and high E strings quickly using octaves.
    • You can use any string as a reference. However, if you use the D string, your guitar will be more in tune across the whole range of the instrument.
  2. Step 2 Fret the D string at the second fret and compare to the low E string. 2 Fret the D string at the second fret and compare to the low E string. The note at the second fret of the D string is an E, but it is an octave higher than the pitch produced by the open low E string. Tune the open low E string up or down until they are playing the same pitch, but an octave apart. When the string is in tune, the sounds of the two strings will fit together, producing one rich sound.[14]
    • Even though the notes are an octave apart, you can still hear when they are in tune. If you have a hard time hearing it, use another tuning method until you’ve trained your ear to hear wide intervals.
    • An octave is a musical interval between two pitches that are 12 half steps (or 12 frets) apart. Both pitches in an octave have the same note name (for example, low E to a higher E).
    • Another way to hear octaves is to imagine the first and last note of a full scale (for example, the note do in do-re-mi-fa-sol-la-ti-do).
  3. Step 3 Compare the same note to the high E string. 3 Compare the same note to the high E string. The E on the second fret of the D string is one octave lower than the open high E string. Carefully tune the high E string up or down until the two strings are in tune, an octave apart. The strings will sound together as one, without any “wobbling” in the sound.[15]
    • If the “wobbles” in the sound get smaller and less noticeable as you tune, you’re moving the pitch in the right direction. If the wobbles get wider and more dissonant, you’re going the wrong way.
    • If the high E string is too high, tune it down first, then bring it up. Remember that you're tuning it one octave higher than your reference note (the E on the second fret of the D string).
    • Be careful not to tune the high E string too high, or it may snap.
  4. Step 4 Match the second fret on the D string to the fifth fret on the B string. 4 Match the second fret on the D string to the fifth fret on the B string. The E at the fifth fret on the B string is the same note as the open high E. Play the E on the second fret of the D string. While fretting the B string at the fifth fret, tune the string up or down until it is playing the same note one octave higher.[16]
    • While you can also tune the B to the open high E string, your guitar will be better tuned if you tune as many strings as possible to the same, single string.
  5. Step 5 Tune the A and G strings using relative tuning. 5 Tune the A and G strings using relative tuning. From this point, the easiest way to tune the A string is to fret the low E string at the fifth fret and match the pitch of the open A string to that note (just like using the fifth fret method above). Then, use the note at the fifth fret of the D string to tune the G string.[17]
    • By following this method, you have tuned 5 of your 6 strings to the D string. Play a few chords to make sure your guitar sounds right, making adjustments where necessary.
  6. Advertisement

Become a Guitar Pro with this Expert Series

Are you looking to take your guitar playing to the next level? We’ve put together this series of expert articles to help you play like a pro. 1 - Set Up a Guitar 1 Set Up a Guitar 2 - 3 Easy Methods for Tuning Your Guitar by Ear 2 3 Easy Methods for Tuning Your Guitar by Ear 3 - Finger All Chords on Guitar 3 Finger All Chords on Guitar 4 - Learn Guitar Scales 4 Learn Guitar Scales 5 - Strum a Guitar 5 Strum a Guitar 6 - Play Barre Chords on a Guitar 6 Play Barre Chords on a Guitar

Expert Q&A

Search Add New Question
  • Question What if my reference note is E instead of D? Michael Papenburg Michael Papenburg Professional Guitarist Michael Papenburg is a Professional Guitarist based in the San Francisco Bay Area with over 35 years of teaching and performing experience. He specializes in rock, alternative, slide guitar, blues, funk, country, and folk. Michael has played with Bay Area local artists including Matadore, The Jerry Hannan Band, Matt Nathanson, Brittany Shane, and Orange. Michael currently plays lead guitar for Petty Theft, a tribute to Tom Petty and the Heartbreakers. Michael Papenburg Michael Papenburg Professional Guitarist Expert Answer One of the easiest ways to tune your guitar manually is to find a reference note for E. Match that pitch to your lowest string, then play that string with your finger on the fifth fret. Compare that to the pitch of the open 5th string, which is the A string. When those notes are identical in pitch, fret the 5th string at the 5th fret and match it to the open 4th string. Keep doing this down each string. The only string that's slightly different is the second string, which you'd match by fretting the 3rd string at the 4th fret. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 2 Helpful 6
  • Question Are the guitar strings EADGBE or EBDGAE? Community Answer Community Answer It's standard to refer to the string order from lowest (thickest) to highest, from right to left. So EADGBE is correct. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 7 Helpful 18
  • Question Would a guitar be the same as piano in this pitch? Community Answer Community Answer Yes. An E on the piano should be an E on a guitar, or it's not an E anymore. You have to make sure it's the right octave, however. Thanks! We're glad this was helpful. Thank you for your feedback. If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow Yes No Not Helpful 3 Helpful 11
See more answers Ask a Question 200 characters left Include your email address to get a message when this question is answered. Submit Advertisement

Video

Tips

  • Your guitar will stay in tune longer if you change your strings regularly and avoid exposing your guitar to significant temperature or humidity fluctuations.[18] Thanks Helpful 0 Not Helpful 0
  • If a string sounds higher than it should, loosen it to tune it down first. Then, tune it up to the correct pitch. Tuning upward locks the tension in the string so it won't slip (and it’s easier for most people to hear when the pitches match than tuning downward).[19] Thanks Helpful 0 Not Helpful 0
  • If you don't have a strong ear, try using a guitar tuning app like GuitarTuna or Fender Guitar Tuner. There are many apps for smartphones that you can download for free. Thanks Helpful 0 Not Helpful 1
Submit a Tip All tip submissions are carefully reviewed before being published Name Please provide your name and last initial Submit Thanks for submitting a tip for review! Advertisement

You Might Also Like

Tune an Acoustic GuitarHow toTune an Acoustic Guitar How toTune a Guitar Set Your Guitar's IntonationHow toSet Your Guitar's Intonation Tune a Guitar to Drop DHow toTune a Guitar to Drop D Find an Octave on a GuitarHow toFind an Octave on a Guitar How toLearn All the Notes on the Guitar Use Tuning ForksHow toUse Tuning Forks 3 Ways to Tune a Guitar 1/2 Step Down Tune a ViolinHow toTune a Violin Tune a 12 String Guitar4 Simple Ways to Perfectly Tune Your 12-String Guitar Tune a UkuleleHow to Tune a Ukulele for Beginners Tune a Lap HarpHow to Tune Your Lap Harp to a Major Scale & More Start Learning GuitarHow toStart Learning Guitar Tune a MandolinHow toTune a Mandolin Advertisement

References

  1. https://www.fretjam.com/how-to-tune-a-guitar.html
  2. https://www.fretjam.com/how-to-tune-a-guitar.html
  3. https://www.guitarlessonworld.com/lessons/guitar-tuning-learn-how-to-tune-a-guitar/
  4. https://www.guitarlessonworld.com/lessons/guitar-tuning-learn-how-to-tune-a-guitar/
  5. https://www.fretjam.com/how-to-tune-a-guitar.html
  6. https://www.tiktok.com/@biguniversemusic/video/7277929422693551406?lang=en
  7. https://www.guitartricks.com/blog/10-Things-to-Know-About-Playing-Natural-Harmonics
  8. https://youtu.be/jFbwPZWJzmo?t=24
  9. https://www.tiktok.com/@biguniversemusic/video/7277929422693551406?lang=en
More References (10)
  1. https://youtu.be/jFbwPZWJzmo?t=271
  2. https://www.tiktok.com/@biguniversemusic/video/7277929422693551406?lang=en
  3. https://youtu.be/jFbwPZWJzmo?t=193
  4. https://www.tiktok.com/@biguniversemusic/video/7277929422693551406?lang=en
  5. https://classicalguitarshed.com/tune-guitar-by-ear/
  6. https://classicalguitarshed.com/tune-guitar-by-ear/
  7. https://classicalguitarshed.com/tune-guitar-by-ear/
  8. https://classicalguitarshed.com/tune-guitar-by-ear/
  9. https://www.schoolofrock.com/resources/guitar/beginners-guide-to-tuning-a-guitar
  10. https://www.fretjam.com/how-to-tune-a-guitar.html

About This Article

Michael Papenburg Co-authored by: Michael Papenburg Professional Guitarist This article was co-authored by Michael Papenburg and by wikiHow staff writer, Dan Hickey. Michael Papenburg is a Professional Guitarist based in the San Francisco Bay Area with over 35 years of teaching and performing experience. He specializes in rock, alternative, slide guitar, blues, funk, country, and folk. Michael has played with Bay Area local artists including Matadore, The Jerry Hannan Band, Matt Nathanson, Brittany Shane, and Orange. Michael currently plays lead guitar for Petty Theft, a tribute to Tom Petty and the Heartbreakers. This article has been viewed 326,726 times. 9 votes - 89% Co-authors: 26 Updated: June 18, 2025 Views: 326,726 Categories: Guitar Maintenance Article SummaryX

To tune a guitar without a tuner, start by fretting the low E string at the fifth fret, which is the lowest and thickest string on your guitar. Next, play the A string and tune it up or down until it matches the sound from the E string. Then, match the D and G strings to the E string. For the B string, tune it up or down until it makes the same sound as the G string at the fourth fret. Finally, return to the fifth fret and match the high E string to the sound of the B string. To learn more, like how to tune your guitar using harmonics or a reference note, scroll down! Did this summary help you?YesNo

In other languages Spanish Italian French Indonesian Dutch Japanese
  • Print
  • Send fan mail to authors
Thanks to all authors for creating a page that has been read 326,726 times. If you buy through links on our site, we may earn a commission.

Did this article help you?

Yes No Advertisement If you buy through links on our site, we may earn a commission.Cookies make wikiHow better. By continuing to use our site, you agree to our cookie policy. Michael Papenburg Co-authored by: Michael Papenburg Professional Guitarist Co-authors: 26 Updated: June 18, 2025 Views: 326,726 89% of readers found this article helpful. 9 votes - 89% Click a star to add your vote

Quizzes & Games

Music Notes & Symbols TestMusic Notes & Symbols TestTake QuizWhat Instrument Should I Play QuizWhat Instrument Should I Play QuizTake QuizAm I Smart QuizAm I Smart QuizTake QuizWhat Is My Color Aura QuizWhat Is My Color Aura QuizTake QuizLyrical Memory QuizLyrical Memory QuizTake QuizWhat Does My Soul Look Like QuizWhat Does My Soul Look Like QuizTake Quiz

You Might Also Like

Tune an Acoustic GuitarHow toTune an Acoustic GuitarTune a GuitarHow toTune a GuitarSet Your Guitar's IntonationHow toSet Your Guitar's IntonationTune a Guitar to Drop DHow toTune a Guitar to Drop D

Featured Articles

Enjoy the HolidaysHow toEnjoy the Holidays Get 250 Grams of Protein Daily: Best Foods, Meal Plans & MoreHow to Get 250 Grams of Protein Daily: Best Foods, Meal Plans & MoreAm I Girly QuizAm I Girly Quiz200 Fun, Flirty, & Deep Questions to Get to Know a Guy Better200 Fun, Flirty, & Deep Questions to Get to Know a Guy Better Tighten Skin Under Your Chin: Natural or Surgical OptionsHow to Tighten Skin Under Your Chin: Natural or Surgical OptionsWhat Would My Nickname Be QuizWhat Would My Nickname Be Quiz

Trending Articles

Let Us Rate You 1-10: Attractiveness Scale QuizLet Us Rate You 1-10: Attractiveness Scale QuizHave I Met My Soulmate Yet QuizHave I Met My Soulmate Yet QuizHow Rare Is My Birthday QuizHow Rare Is My Birthday QuizHow Nonchalant Am I QuizHow Nonchalant Am I QuizCan We Guess If You're Single or Taken?Can We Guess If You're Single or Taken?How Much Do I Mog QuizHow Much Do I Mog Quiz

Featured Articles

21 Common Hand Signs & Gestures (& What They Mean)21 Common Hand Signs & Gestures (& What They Mean)170+ Best Useless Facts That Sound Like Lies170+ Best Useless Facts That Sound Like LiesIs He Interested In Me QuizIs He Interested In Me Quiz15 Signs Your Ex Misses You (and What to Do About It)15 Signs Your Ex Misses You (and What to Do About It) Observe Hanukkah (From Candle Lighting to Latke Frying)How to Observe Hanukkah (From Candle Lighting to Latke Frying)165+ "You Are Special" Quotes For Friends, Family, Partners & More165+ "You Are Special" Quotes For Friends, Family, Partners & More

Featured Articles

115+ Brain Teasers For Adults & Kids (With Answers!)115+ Brain Teasers For Adults & Kids (With Answers!)When Will I Get My First Kiss QuizWhen Will I Get My First Kiss Quiz17 Believable Excuses to Miss Class At the Last Minute17 Believable Excuses to Miss Class At the Last Minute Speed Up Your Slow-Performing Mobile DataHow to Speed Up Your Slow-Performing Mobile Data Get a Nice BodyHow to Get a Nice BodyIce Cream Personality TestIce Cream Personality Test

Watch Articles

Wrap a Round GiftHow toWrap a Round GiftSteam in an OvenHow toSteam in an Oven Make Plant-Based Meat: 4 Incredible RecipesHow to Make Plant-Based Meat: 4 Incredible RecipesClean a Silver NecklaceHow toClean a Silver Necklace4 Easy Ways to Open a Can of Soda4 Easy Ways to Open a Can of SodaPart Your HairHow toPart Your Hair

Trending Articles

Make OutHow toMake OutAm I a Furry QuizAm I a Furry QuizAm I Annoying QuizAm I Annoying QuizHow Weird Am I QuizHow Weird Am I QuizWhat Does “Cracked” Mean in Slang?What Does “Cracked” Mean in Slang?What Are the Gay Male Body Types (And Which Do You Have?)What Are the Gay Male Body Types (And Which Do You Have?)

Quizzes & Games

What Chakra Do I Need to Balance QuizWhat Chakra Do I Need to Balance QuizTake QuizIQ Test For KidsIQ Test For KidsTake QuizDo I Have Common Sense QuizDo I Have Common Sense QuizTake QuizWhat Crystal Do I Need QuizWhat Crystal Do I Need QuizTake QuizWhat Human Emotion Am I QuizWhat Human Emotion Am I QuizTake QuizWhat Age Is My Brain QuizWhat Age Is My Brain QuizTake Quiz wikiHow
  • Categories
  • Arts and Entertainment
  • Music
  • Musical Instruments
  • String Instruments
  • Guitar
  • Guitar Maintenance
wikiHow Newsletter You're all set! Helpful how-tos delivered toyour inbox every week! Sign me up! By signing up you are agreeing to receive emails according to our privacy policy.
  • Home
  • About wikiHow
  • Experts
  • Jobs
  • Contact Us
  • Site Map
  • Terms of Use
  • Privacy Policy
  • Do Not Sell or Share My Info
  • Not Selling Info
  • Contribute

Follow Us

×

Don’t miss out! Sign up for

wikiHow’s newsletter

Subscribe You're all set! X --822

Tag » How To Tune A Guitar Without A Tuner