A team of experts dedicated to supporting your musical life through repair and tuning services


“TC-TUNE is the exclusive repair team for TCGAKKI and Advance Guitars.”

“Why does a store specializing in used and vintage instruments need an in-house repair team?” Some of you may be wondering this. The role
of “TC-TUNE” is to “create TCGAKKI.”
Every instrument sold by TCGAKKI is repaired, adjusted, and inspected by TC-TUNE. We completely disassemble every instrument we purchase from customers, clean it thoroughly, repair any damaged parts, and perform proactive adjustments to maximize the instrument’s potential.
TCGAKKI and Advance Guitars place great importance on delivering “playable instruments” to our customers, and TC-TUNE supports this philosophy behind the scenes. It is precisely because TCGAKKI and Advance
Guitars are specialty stores for used and vintage instruments that an in-house repair team is indispensable.


“TC-TUNE does more than just repair instruments.”

Our specialized repair team ensures each instrument is brought to a condition befitting a product from a store specializing in used and vintage instruments.
TC-TUNE focuses on maximizing an instrument’s potential and enhancing its playability. We want our customers to base their instrument selection solely on “appearance” and “sound.” We don’t want you to make
decisions like, “I like the way it looks, but it’s hard to play… or ‘The look isn’t great, but this one plays better, so I’ll go with this one.’” That’s precisely why TC-TUNE maximizes each instrument’s potential and pays meticulous attention to playability. Furthermore
, at TCGAKKI GTCGAKKI, we believe that our relationship with customers doesn’t end with the purchase of an instrument—that’s just the beginning.
As the repair team for TC-TUNE, our goal is not simply to provide “instruments that are problem-free at the time of sale,” but rather “instruments that customers can continue to use for a long time,” and we aim to walk alongside our customers throughout their musical journeys.

“TC-TUNE also plays a vital role in the instrument buyback process.”

At TCGAKKI Instruments and Advance Guitars, our main focus is on used instruments. TC-TUNE plays a major role in this area as well. We believe that by using TC-TUNE to maximize an instrument’s potential, we can increase its value. That’s why TCGAKKI Instruments and Advance Guitars can confidently offer high buyback appraisals. TC-TUNE supports our “buyback service unique to a specialty store for used and vintage instruments.”

“Making every instrument easy to play and sound great.”

Over the years, TC-TUNE has repaired and adjusted countlessused and vintage instruments. Regardless of age or price range, we carefully assess the condition of each instrument individually to determine the optimal setup for it. Wehandle over 30 requests per month.We’ve worked with a wide range of instruments, from ’50s vintage models to cherished Japanese vintage guitars, bizarre guitars, the latest high-end models, and even beginner-friendly guitars. We’ve turned countless customerrequests—such as “I wish this part were a little different”or “It would be great if it sounded like this”—into reality.


“TC-TUNE’s Track Record”

・Repair and adjustment of approximately 2,000 instruments per year At
TC-TUNE, we handle the repair and adjustment of approximately 2,000 instruments annually. The vast majority
of these are products from TCGAKKI and Advance Guitars.We handle instruments from a wide variety of manufacturers, both domestic and international, and the price range of the instruments we repair and set up spans from tens of thousands to tens of millions of yen. ・Responsible for final setup of TMG Guitar and
MG Bass for domestic shipment TC-TUNE is

responsible for the inspection and final setup of TMG Guitar and MG Bass, for which TC Gakki serves as the official distributor.
TCGAKKI deeply understands “the merits of Fender and Gibson from the era when XX was their distributor” and “the importance of inspecting and setting up overseas brands according to Japanese standards.” Guided by this belief, we perform adjustments on even New instruments so that customers can feel confident using TMG Guitar and MG Bass products and consider them “ready to play” right out of the box.

OEM production of select
“hundred” products “hundred” is a brand produced by TCGAKKIki from a hands-on perspective, offering truly practical products. TC-TUNE is responsible for manufacturing some of these products
. Leveraging the technical expertise cultivated through the repair of used and vintage instruments
, we craft a small number of handmade products of assured quality.

Co-producing the “ReFine Series The “ReFine Series,” co-produced TCGAKKI
TC Gakki and TCGAKKI-TUNE, redefines instruments from the era known as “Japan Vintage” under the concept of making them “suitable for modern music.”
This series was born from the fusion of TCGAKKI’s extensive experience handling “Japan Vintage” instruments and TC-TUNE’s expertise in repairing and adjusting them to playable condition. We are confident that we have successfully proposed new value through this series.

Playful Modifications
: TCGAKKI projects, the “glowing knobs” modification—featured at tcgakki.com/blogs/news/tc-tune—stands out for its playful spirit. This
, too, is the work of
TC-TUNE. We believe that an instrument’s appearance and design are crucial elements that significantly influence the user experience. TC-TUNE also loves
customizations that satisfy the user and allow them to enjoy their instrument even more.


Chief Repair Technician

Soichiro Tanaka
, born in 1988 in Yanagawa City
, Fukuoka Prefecture. During his university years, he became fascinated by the mechanics and structure of musical instruments, putting his studies on the back burner to immerse himself in tinkering with them.
At the same time, he handled PA (sound engineering) for a band club, where he learned the importance of crafting the sound for the entire band, not just individual instruments.After graduating from college, he enrolled in the ESP Guitar Craft Academy. Upon
graduation, he applied for a sales position at The Used Instrument Shop (now TCGAKKI), but was told, “We’re planning to set up a new repair booth,” and was Recruit on the spot as a repair technician. Through trial and error, working in collaboration with and supported by many people
, he built the current TC-TUNE from the ground up.



YouTube


Tanaka & Tsushima’s “Sophistry” Series


The “Gachi Barashi” Series


Understand Guitars! TC Seminar