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on December 14, 2012
There are quite a few pocket sized electronic tuner/metronomes out there for musical instruments, and many of them are not very distinguished in terms of utility, functionality and quality. This Korg model is the best one I have seen, and at an affordable price. Korg is or course a leader in this field, and Yamaha's "Dr. Beat" metronomes are more powerful and flexible, but this little unit does pretty much anything a busy musician needs.

The tuner is intended for instruments that make a reasonably sustained sound, so it is not a guitar tuner. I have not tried it for pianos, harpsichords and the like. I think it is best used with wind instruments or others that can produce tones os a few seconds duration not counting the decay.

The tuner has a sweep needle that is part of the large backlit LCD display. You can turn the backlighting off to save battery power. There are also three bright LED lamps for Flat, In Tune, and Sharp, allowing you to tune when too far away to read the LCD sweep needle.

The tuner allows tuning to different pitch standards over the range 410-480Hz, with A-440Hz being the default, and the display shows this number in large digits, and also shows the note name, e.g. Ab, etc.

The tuner can listen to your instrument, either through its built-in microphone or by plugging the cable from an electronic instrument into the 1/4" phone jack on the side of the unit. The tuner can also produce any pitch, either over the built-in speaker or silently throught the 1/8" headphone jack.

A nice feature is the "Sound Back" which plays back the in-tune pitch that is closest to the pitch you play with your out-of-tune instrument. For example, play your instrument, the unit determines that you are playing a somewhat flat F, and it then plays an in-tune F through the speaker, and you can adjust to match it. The tuner can accurately respond to notes over an 8 octave range.

As far as I have been able to determine, this tuner does NOT allow tuning to historical or alternate temperaments, so it is always 'equal temperament', which suits most modern music played on wind instruments. I doubt if a piano tuner would find this unit very useful.

The tuner and the metronome are autonomous, like having a separate tune and metronome in the same case. Each can be turned on and off separately, and you can in theory use both at the same time if you can figure out a way for that to be useful.

The metronome allows you to select tempi in one beat-per-minute increments over a 30-252 BPM range. You can separately select any of several (actually 15) beat subdivisions, or beat emphasis points, so that when you select '3' for example, the metronome will play one beat with one tone, then the next two beats with a different tone, so you can keep track of the first beat of each measure. You can also select things such as triplet subdivisions within a beat, but this unit is not as flexible in this regard as a fancier metronome such as the Dr. Beat. However, like Dr. Beat, this metronome DOES have the Tap Tempo button; you tap the desired tempo on a large button and the unit automatically figures out the tempo number. You can use this simply to display the tempo you tapped, or you can use it to control the action of the metronome.

The metronome can be stopped and started without losing the settings.

The unit used two AAA cells for its battery.

Weight is about 3.5 Oz, or the same as a typical CD in its jewel case. The dimensions are 111 x 74 x 18 mm / 4.37 x 2.91 x 0.71 inches.

The unit comes in either black or white case colors.
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on March 7, 2016
We have owned this tuner for over a year now and I thought I should write a review.

My middle school violin player needed a tuner. Her private teacher had one by this company, but it was so expensive. I then saw this less expensive tuner by Korg and I am so happy with it.

My daughter says it tunes well. It will let you know if the note is in tune (if it is flat or sharp) and it also tells you the note you are playing. This was the best feature when I first purchased for her as she had problems tuning by ear. Now that she is more skilled at tuning she plays the tone and then tunes by ear. The screen lights up so if you are in a dark room you can still see it. It is quite small as well and this makes it easy for her to place it in her violin case and take it to school, practice or symphony.

One thing my daughter does not like about the tuner is the metronome which has a louder sound for the first beat. She would prefer a constant sound as there are many times in her symphony music in which they change time signature and then if she wants to use the metronome she has to stop and reset it.

Pros:
Tunes precisely
Can tune by ear
Metronome
Lighted screen
Inexpensive
Fits in a violin case

Cons:
Metronome has a louder sound for the first beat
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on January 31, 2018
I am an amateur pianist who plays the piano for fun, and I was looking for a simple-to-use, inexpensive metronome. Like many amateurs, I tend to speed up the tempo as I play, and I was looking for something to help me learn not to do that.

This metronome is small enough to sit on the side of the piano, and there is a small stand on the back to prop it up. It is easy enough to use - just push the up and down buttons to change beat and tempo to what I want. I like the fact that this metronome allows me to hear the tempo as I change it, so I can stop when I get to the tempo I want. I also like that the first beat of each measure sound a little bit different.

The up/down button changes the tempo in increments of about 2 beats. I play a wide range of tempos, and in a perfect world, I would like an option that would allow me to make changes in larger increments at first and then smaller increments as I near the tempo I want. Still, it changes quickly, and that would be a minor convenience.

I had never used an electronic metronome before, and like some other reviewers have said, this one is a little too quiet to hear without an ear piece.

I also play guitar, and although I haven't used it yet, I like the fact that this also has a tuning function.
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on April 13, 2018
HIGHLY RECOMMEND! (a bit expensive, but this a great tuner--excellent value!) **Save your money--don't splurge on the clip-on microphone (it's totally a not need)**

Bought this to help me with me picking up trumpet playing (I played brass in high school, but that's been longer that I care to remember!).

Tuner works great--very quick tuner articulation. I was used to the expensive analog tuners, but I didn't feel like shelling out the cash for one of those, and with the the KORG TM-50, there is no reason to! Battery life has been excellent (but I usually keep the back-light turned off).

Integrated Metronome is great (though not the coolest sounding metronome on the market).

I didn't bother spending the extra $15 on the clip-on microphone, and am glad I didn't. This picks up sounds perfectly. If you are planning on playing in a group, and want to dial in just your sound, I could see justifying the cost, but even then, this thing does great by itself.

Size: tuner is surprisingly small (online pictures can be difficult to gauge the size,but it's about the size of deck of cards (thinner, but a bit longer and wider)--very light. My trumpet case is a small case no problem.
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on June 6, 2017
Yes, yes you should. I should have done so the first time, too. I learned the error of my ways a couple weeks after my purchase when the instrument case was put down on the metronome giving me the lovely result you can see in the included photo.

The tuner works nicely and is pretty intuitive to use. I liked it so well I bought it again! (With a case this time.)
review image
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on December 30, 2014
For years, I had one of the old silver Korgs. What were they, TM40s? Something like that. You know what I mean - they were those tuners every high school band director made their kids use. Well, I lost track of mine, and I needed a replacement, so this is what I got. Of course, I found the old one days after this one showed up, but it was beat-up anyway, so I stuck it in with my carry-around horn, kept this one with my performance gear, and took the opportunity to compare them.

As far as the tuning aspect goes, this is still a great little tool. It's accurate, it'll register a piccolo or an acoustic bass guitar with equal ease, and it makes it absurdly easy to tune. I don't remember what the old one's range was for calibration, but this thing runs from A=410-480Hz, so it doesn't matter what instrument you play or how old it is - you can tune it with this. Most of us will never care about anything beyond 440, but if you're into antique instruments, you may find some use for 430 and/or 456. The biggest improvement on the tuner end is this thing's tone range, which now runs from C3 to C6, as opposed to the one-octave range of the old ones, which is very useful if you like tuning by ear or annoying the crap out of your bandmates. The tones are also affected by calibration, but not while sounding.

The metronome seems mostly unchanged, except for a very large light to show the clicks instead of the two tiny LEDs the old ones had. That makes it easier to see. The buttons are a bit different but irrelevant. The tap-to-tempo function is still there, all the old rhythms including the gap triplets and gap sixteenths (the former being useful for swing and the latter for that one rhythm that no kid ever plays right).

The biggest thing that puts this way ahead of the old ones is the backlight. I play in bar bands, and I also busk with friends, so that stupid little backlight is a lifesaver, and I can also shut it off to help prevent it reducing my battery life to only 2 years.

The only flaw I see compared to the old designs is the 'kickstand'. The old ones were simple, and they were more likely to just pop out instead of break (and could easily be popped back in). This one is a bit flimsy, and I fully expect it to break long before the five year mark my old one has so far surpassed intact.

You can find nicer tuners/metronomes, but if you are a player just looking for something to toss in your case, buy this and go practice.
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on May 11, 2017
This is a very good Tuner. The problem is the owner's manual. It is written by someone with no clue how to tell others to use the instrument. They assume the users are all experts in instrument tuning. After many trial and guessing, I figured how to use it and get my drums tuned properly. The instrument helped once I learned from the internet how to use it.
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on October 3, 2017
This is an excellent tuner and metronome. Super easy to use and better yet, super easy to see. It does a good job of registering the correct pitch of even a low B 7th string just using the built in mic. The metronome is loud enough and has enough options to it that go beyond basic 4/4 time. Definitely recommend for anyone needing tuning and metronome for any instrument.
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on August 10, 2016
The combination of a Tuner and Metronome is a must for every music student. I don't know how I got along without it!
The metronome is easy to use and has the additional feature of being able to tap a speed and it will tell you the tempo. This is handy when listening to a recording to capture the tempo for future use.

The Tuner is great and the backlit feature is nice in dim lighting but can be turned off when not needed to save batteries. Speaking of batteries, I have used this every day for about 2 hours a day for about a month so far and it is still going strong so I am hopeful for a long battery life.
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on February 11, 2015
I am very happy with this product. It is light-weight plastic and was nicely cushioned to protect it during shipping. The light weight will be nice for transporting in my violin case. Despite being light, it still seems to be of good quality. I use it mostly for tuning and entry of simple tempos. It picks up my instrument easily (from a position seated on my music stand) and the digital needle responds immediately to changes in pitch. The LCD screen is nice and I have no problem seeing it from several feet away. It is very easy to use. I have not tried the "sound back" feature yet. The metronome works well and is loud enough to hear over my violin, which was important to me. My last metronome was too quiet. I like that it has an auxiliary port as well so that I can use headphones if desired. I have nothing bad to say about this product thus far.

My Favorite Pros
-Combination of light weight, nice quality construction and sleek design
-"Kickstand" and headphone jack
-Adjustable volume gets loud enough to hear over my violin
-LCD screen easy to read with adjustable backlight
-Digital tuning needle responds quickly & accurately
-Additional useful features I haven't tried yet (such as "sound back" and rhythm variations)

Cons
-None so far
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