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 This is a robust basic tuner/trainer in a small form factor. The built in mic works fine for practicing by yourself, whereas the included contact mic allows you to get isolated feedback from your instrument in a noisy environment.

The display is easy to read, and the backlight works well. It's very helpful to use the "sound back" mode to listen for the note you are trying to achieve with wind instruments, without having to constantly stare at the tuner to see if you are flat or sharp. This helps brain train, as you'll begin to hear the notes in your head, and know what to aim for without having to check constantly later on.

The metronome has all of the basics, and works fine. You can use the metronome alone, the tuner alone, or both together.

The only weakness of this tuner lies in the display and battery life.
- There is a bit of "ghosting" on the display as the needle moves around, but it is only aesthetic, and does not alter readability.
- On all Korg tuners, the screen has a thin acrylic protector, which scratches easily. Using a microfiber cloth to clear away grease, will give you a lot of light scratches. It's not a huge issue, and doesn't really impact readability.
- The batteries last a good while, but this is an older model, and newer offerings by Korg get much longer run time (20-50%). They also have larger/more visible screens.

For the price, this is a good deal for beginners, as you get the contact mic, and a very functional tuner. The microphone works with other Korg tuners as it uses a standard connector. If you are learning brass/woodwinds, and you want to improve your volume/overtones, you can later step up to a more fully featured model when you're ready to develop those skills.
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4 people found this helpful
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on March 6, 2018
I bought the Korg TM-50 to mainly use as a metronome. I choose white since it was five bucks cheaper than black (plus easier to see in dim light). As a metronome it’s basic: pulse, optional meter downbeats from 1 to 9 and division of the beat into 8th, triplets, 16th, shuffle and dotted 8th plus 16th. I only use the basic beat and downbeat modes so I didn’t want to pay for all the extras of the Korg TM-60 or BeatBoy.

Tempo input is easy: tap a rubberized button or scroll up and down with the arrow keys. If you want to quickly jump from a slow tempo to fast, tapping it in is faster. For a fine adjustment, the arrow keys are best. All the buttons are easy to use and feel solid enough.

The monochrome LCD works okay but looks like tech from the early 1990s and is on the tiny side. The gentle orange light is a nice touch.

Metronome volume is perfect for practicing classical and acoustic guitar but may be too soft for wind instruments and piano (unless plugged into an amp). There’s a volume knob but most people will probably need to run it wide open.

One rub for me is the lack of alternative sounds. Even my plain and ancient Seiko metronome has a choice of a woody click or clave. The given beat timbre sounds like something out the 1980s Tron movie.

Finally, I tried the tuner and it was okay but not great: jumpy and often misread the open strings of my classical guitar. The included tuner mic or a direct connection to a guitar pickup improves tuner performance considerably. I have Polytune clip-on or built-in tuners on my guitars so no biggie but I wouldn’t buy the TM-50 for the tuner function. Basically this is good metronome and a so-so tuner.
2 people found this helpful
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on May 19, 2017
I am tuning guitars and autoharp. Great to have all notes directly tunable, unlike my old 6-note guitar tuner. Clamp on microphone works well on autoharp, and tuner can also be used without the attachment. Personally, I like that the clamp and tuner unit are separate -- easier to see the screen and use buttons. Mellow amber backlight is perfect, easy on the eyes. My daughter says I "need" the metronome, and I gave it a try -- loud but not intrusive.
3 people found this helpful
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on February 8, 2015
This is excellent. For years I had a Boss Chromatic Tuner TU-12H for my flute/piccolo and bass guitar. It was bigger and required a 9 V battery which lasted forever, but is a pain to replace. I'm happy with how slim the Korg is and the contact mic is incredible. The only thing is there is a slight delay turning it on, so when people are impatient at tuning at a moments notice during band practice it's a little annoying when my bandmates are held up for a second or so.
6 people found this helpful
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on January 26, 2018
The item was received in good condition. Packaging could not have been improved on.
I was satisfy with the item and it performed as expected and as advertise. I would
Recommend the item and would order it again. For the price you could not get a
Better deal.
One person found this helpful
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on January 26, 2018
This a GREAT tuner and metronome! Excellent features. Easy to use (just have to remember to turn UP the lighting so it's visible in daylight). I use it on my guitars (bass, 6 string, 12 string), ukulele, tuba, trombones, and double bass. The gold color was advantageous so it's easy to find inside a case or a gig bag. Shipped in bubble-wrap,arrived early and in perfect condition.
One person found this helpful
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on July 26, 2017
Tuning an upright bass, with bow, usually throws tuners in a tizzy. This one is the best for giving a really accurate read out without the needle going crazy. For orchestra, this is the best.
Love it with the clip on mic. Clip it right on the bridge between the A and D strings.
For jazz, it can be used as a pick up too.
Love this thing.
2 people found this helpful
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on February 6, 2018
Very happy to get this product so very quickly as I had a concert that weekend and I depend on a tuner with a clip on input mic. Have used these Korg tuners and mics over the years and getting the combo tuner and mic together was great. Looking forward to checking out the metronome feature as well.
One person found this helpful
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on February 7, 2018
This is exactly as described, excellent metronome with great adjustments, volume is loud enough for me and I am hard of hearing. The contact mic works great for tuning on my ukuleles.
One person found this helpful
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on December 15, 2017
Had it for a month. Works great no issues but...take the batteries out and replace them. The ones they came with leaked!!! Never trust off brand batteries!
3 people found this helpful
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