Hawaiian Slack Key Festival 2026: Free Outdoor Concert (June)
Hawaiian Slack Key Festival 2026
The Hawaiian Slack Key Guitar Festival — King of Hawaiian Music is held every year in June at Kapiolani Park Bandstand in Honolulu. The 2026 festival takes place on a weekend in mid-June, gates opening at 10am, with performances running through the afternoon. Admission is completely free.
This is widely considered the premier showcase of ki ho'alu — Hawaiian slack key guitar — anywhere in the world. For a full afternoon of world-class music in a park setting, at no cost, it is one of the best events in all of Hawaii.
What Is Slack Key Guitar?
Slack key guitar (ki ho'alu, literally "loosen the key") is a uniquely Hawaiian fingerpicking guitar style developed in the 1800s when Mexican and Spanish vaqueros (cowboys) brought guitars to the Hawaiian paniolos (cowboys) working the ranches of the Big Island. Hawaiian musicians took the guitar and made it entirely their own.
The defining characteristic is the open tuning — the strings are "slacked" (loosened) from standard guitar tuning to create open-chord voicings that let the thumb play bass lines while the fingers pick melodies above. The result is a sound that is immediately recognizable and deeply evocative of Hawaii: warm, unhurried, resonant, with the melody and rhythm woven together rather than separated.
Slack key guitar was a largely private tradition — families passed tunings and techniques down across generations, often in secret. Each family developed its own distinct tunings and styles. When the first recordings began reaching the mainland in the 1960s, audiences discovered a music that felt ancient and modern simultaneously.
Grammy Award-Winning Tradition
Slack key guitar has its own Grammy Award category — Best Hawaiian Music Album — created in 2005. Hawaiian slack key guitarists have dominated the category since its inception. Artists to know before attending:
- Ledward Kaapana: One of the greatest living slack key masters; his playing on tunes like "Hi'ilawe" is a masterclass in the style
- George Kahumoku Jr.: Grammy winner, host, and organizer of the Slack Key Festival; a passionate ambassador for the tradition
- Cyril Pahinui: Son of the legendary Gabby Pahinui; carries on one of Hawaii's most important musical family lineages
- Ozzie Kotani: Known for introspective, melodic playing and deep knowledge of traditional tunings
What to Expect at the Festival
- Gates open at 10am; performances typically begin around 10:30am and run to approximately 5pm
- Multiple performers take the stage throughout the day, with each artist playing a 30-45 minute set
- Between performances, the MC gives educational commentary about the music, the tunings, and the cultural history of ki ho'alu
- CD and merchandise sales from the performing artists are available — an excellent opportunity to buy music directly from the musicians
- Food vendors set up near the bandstand area; bring cash
Kapiolani Park: The Setting
Kapiolani Park is Hawaii's oldest and largest public park, stretching from the Diamond Head end of Kalakaua Avenue to the base of Diamond Head crater. The Bandstand — an open-air covered stage — sits near the park's interior, surrounded by lawns, giant banyan trees, and the distant blue backdrop of the Pacific. It is among the most beautiful concert settings in the world.
Practical Tips
- Free parking along the park perimeter fills fast — arrive by 9:30am or take TheBus (routes 2 and 13 from Waikiki)
- Bring a blanket or low-back chair — the lawn seating is comfortable but shade is limited
- Wear sunscreen — the June Honolulu sun is intense even in the park
- Bring cash for food and CD purchases from the artists — most vendors are cash-only
- Bring the whole family — this is genuinely one of the most family-friendly events in Hawaii
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