Miki Musical Instruments

Miki Gakki: Japan's Oldest Music Store in a Taisho-Era Architectural Treasure

Standing proudly on a quiet street in Osaka's Chuo Ward, the Miki Gakki headquarters building — known as the Osaka Kaiseikan — is far more than just a music shop. Completed in 1924 to celebrate the company's centennial, this reinforced concrete building is one of the finest surviving examples of Taisho-era commercial architecture in Japan. Registered as a National Tangible Cultural Property in 1997, the Miki Gakki building tells a remarkable story of music, resilience, and architectural beauty that spans two centuries.

Historical Background

The story of Miki Gakki begins in 1825 (Bunsei 8), when the company was founded as Miki Shoten, a bookshop in Osaka. In 1888, the business expanded into the sale of organs and other musical instruments, while continuing to deal in sheet music and music textbooks. Over the following decades, the company grew to become one of the most important music retailers in western Japan.

In 1924, to commemorate its 100th anniversary, the company commissioned a grand new headquarters building. The architect chosen was Masuda Kiyoshi of Masuda Architectural Office, a pioneer in early Japanese reinforced concrete construction. The building contractor was the prestigious Konoike-gumi. The design was reportedly modeled after the headquarters of the German piano maker Steinway, and bricks were specially imported from Germany for the construction. Modernist architect Motono Seigo designed the third-floor Miki Hall, while Kiuchi Shintaro, one of the foremost stained glass artists of the era, created the building's beautiful stained glass windows.

The building's robust reinforced concrete construction would prove fateful. During the devastating Osaka air raids of March 1945, when much of the city was reduced to ashes, the Miki Gakki building survived the firestorm. In one remarkable episode, over a hundred local residents took shelter inside the building during the bombing and all survived. Incendiary bomb fragments were later found embedded in the copper roof panels — silent witnesses to the destruction the building endured and overcame.

In 1997, the Miki Gakki building was registered as a National Tangible Cultural Property alongside Osaka Castle, recognizing its architectural and historical significance. Today, the building operates as the Kaiseikan, a piano specialty store, while continuing to preserve its irreplaceable heritage for future generations.

Why It Was Designated a Cultural Property

The Miki Gakki building was registered as a National Tangible Cultural Property because it stands as an outstanding example of mid-rise commercial architecture from the Taisho period. The Agency for Cultural Affairs notes that the building's tile-clad exterior with its pronounced vertical lines is highly characteristic of the era's architectural trends. It represents the transition from traditional wooden commercial buildings to modern reinforced concrete structures in Japanese urban centers.

Beyond its architectural significance, the building has been assessed by the Kansai University Department of Architecture and found to require no seismic reinforcement — a testament to the exceptional quality of its original construction. The architect Masuda Kiyoshi, who also designed the Taisho-ya Gofukuten in Hiroshima (now the Hiroshima Rest House, one of the few structures to survive the atomic bombing), built the structure in the year following the Great Kanto Earthquake of 1923, incorporating lessons from that disaster into an exceptionally strong design.

Architectural Highlights and Things to See

The Brick and Terracotta Façade

The building's exterior features a striking combination of brick tiles and terracotta ornamentation. The upper sections of the main façade retain the original bricks from the 1920s. The terracotta decorations are said to be of such quality that a single piece would be worth over one million yen at today's prices. While the lower walls were renovated in 1989 with matching brick tiles, the overall impression of a grand European-style commercial building remains powerful.

Stained Glass by Kiuchi Shintaro

At the main entrance, visitors are greeted by exquisite stained glass windows created by Kiuchi Shintaro, who also crafted stained glass for the Nara Hotel, the Osaka Central Public Hall, and the former Osaka City Hall. The Miki Gakki windows incorporate 1,020 glass pieces in ten different colors and are considered among his finest surviving works.

The Marble Grand Staircase

The staircase leading from the first to the second floor is constructed entirely of marble, reflecting the opulence of the original design. The cast-iron handrails are replacements; the originals were made of iron and were requisitioned by the military during World War II.

The North Entrance Stone Inscription

Above the north entrance, a marble nameplate is still inscribed with the characters for "Books and Musical Instruments / Osaka Kaiseikan / Miki Sasuke" — the original trade name of the business, providing a direct link to the building's origins as both bookshop and music store.

Interior Heritage Features

Throughout the building, original features have been carefully preserved. The first-floor ceiling features Western-style decorative molding with a height of approximately 3.5 meters, and copper woodpecker ornaments adorn the columns. In the basement, rare hexagonal floor tiles remain in place, and old-style clock-dial elevator indicators can still be found. The central staircase from basement to fourth floor was constructed using the araidashi (exposed aggregate) technique, creating an exceptionally durable structure.

Visitor Information

The Miki Gakki Kaiseikan is an active piano specialty store, and visitors are welcome to admire the building while browsing. The first floor serves as a showroom and retail space where you can see the stained glass, marble staircase, decorative ceilings, and other original features. The second floor houses the Kaiseikan Salon and lesson rooms, where concerts and music events are held regularly.

The upper floors (3F and 4F) are administrative offices and are not open to the general public; visitors wishing to see these areas should inquire in advance. Please note that viewing may be restricted during busy business periods.

Be sure to walk around to the north side of the building, where the original brick façade and the historic stone inscription above the entrance offer the most evocative views of the building's Taisho-era character.

Surrounding Attractions

The Miki Gakki building is located in the heart of Osaka's Semba district, one of the city's historic commercial quarters. The area offers plenty to explore on foot.

• Shinsaibashi-suji Shopping Street — One of Osaka's most famous covered shopping arcades, just a short walk south, offering everything from high-end boutiques to street food.
• Osaka Museum of Housing and Living (Osaka Kurashi no Konjakukan) — A fascinating museum that recreates Edo-period Osaka streetscapes, accessible from nearby Tenjimbashisuji-Rokuchome Station.
• Semba Center Building — A massive underground shopping complex stretching between Honmachi and Sakaisuji-Honmachi stations, famous for its wholesale textile shops and affordable dining.
• Utsubo Park — A large urban park just a few blocks west, popular for its rose garden and tennis courts, perfect for a relaxing stroll.
• Dotonbori and Namba — Osaka's vibrant entertainment and dining district is within easy walking distance to the south, offering iconic attractions like the Glico sign and countless street food stalls.