Sanshin Day (Sanshin no Hi)

What Is Sanshin Day?

Every year on March 4th, Japan observes "Sanshin Day" (Sanshin no Hi). Started in 1993 at the proposal of Naohiko Uehara, a personality on the Ryukyu Broadcasting Corporation (RBC) radio program "Min'yō de Chū Uganabira," this day promotes familiarity with the sanshin, Okinawa's iconic traditional three-stringed instrument, and helps pass on Okinawan culture. The date comes from the number wordplay "san (3) - shi (4) - n," which sounds like "sanshin." On this day, RBC i Radio broadcasts the special program "Yukaru Hi, Masaru Hi, Sanshin no Hi," and players in and outside Okinawa perform the celebratory classical piece "Kajadifu" in unison, timed to the hourly time signals from noon to 8 p.m.

Historical Facts About Ryukyu Culture and the Sanshin

For centuries, the sanshin has been deeply woven into Okinawan identity, from the royal court music of the Ryukyu Kingdom to everyday life among ordinary people.

• The sanshin's roots: The instrument is believed to descend from the Chinese "sanxian," introduced to the Ryukyu Islands around the 14th–15th centuries and transformed through local innovation into today's sanshin.
• Spreading to mainland Japan: Around the 16th century, the instrument is said to have traveled from Ryukyu to Sakai (near Osaka), where it was modified into the shamisen.
• The sound of peace: After World War II, in POW camps and similar places, people made "kankara sanshin" out of empty cans and parachute cord, singing and dancing to heal hearts — a powerful story of resilience and recovery.

Fascinating Facts About the Sanshin

• The "snake-skin shamisen": The body is covered with python skin, which gives the sanshin its distinctive tone and its nickname "jabisen" (snake-skin strings).
• Kunkunshi notation: Sanshin music is written in a unique notation system called "kunkunshi," which uses kanji characters to indicate finger positions — a system still used today.
• Ebony necks: Among the woods used for the sanshin's neck, ebony — called "kuruchi" in Okinawan — is especially prized for its density and beautiful tone, making it a top-grade choice.
• The plectrum (bachi): Players typically wear a plectrum carved from water buffalo horn on their index finger, though in folk music styles, playing with bare fingers is also common.
• A family treasure: Some Okinawan households display a sanshin in the place of honor (tokonoma) as a treasured heirloom.

Tips for Enjoying Sanshin Day

• Listen to Okinawan folk music and the sound of the sanshin, letting the breeze of the southern islands carry you into a relaxing moment
• Tune in via radio or online streaming to join or watch the "Kajadifu" performed in unison with the time signals
• Visit an Okinawan restaurant and enjoy a live sanshin performance while experiencing the region's traditional culture
• Learn about the sanshin's history as a symbol of peace and reflect on the healing power of culture

The Golden Tone That Connects Hearts

March 4th is a day when the warm yet sharp tone of the sanshin brings people's hearts together. Just as the instrument's three strings create a uniquely beautiful resonance, may your year harmonize beautifully with the people and environment around you. May today bring you peaceful comfort and a curious spirit toward new culture — the most "yugafu" (bountiful) day of all!