Ahn Hee-chan
(Principal Trumpet of KBS Symphony Orchestra)

Antonius Gerochristosoulou
(Member of Buccina Ensemble ‘Bonn’)

Armin Rosin
(Professor of Stuttgart University, Germany)

Bai Lin
(Professor at the Central Conservatory of Music)

Bruce Barrie
(Founding member of the Chestnut Brass Company)

Choe Kil-soon
(Principal Horn of Su-won Philharmonic Orchestra)

Don Lucas
(Artist teacher of Trombone at Boston University)

Duan Fu-Hsuan
(Principal Tuba of Taiwan National Symphony Orchestra)

Eric Aubier
(Professor at the CNR of Reuil-Malmaison)

Herbert Lange
(Principal trumpet in the Gurzenich Orchestra of Cologne)

Hui Jia
(Principal French horn of China Philharmonic Orchestra)

Heo Jae-Young
(Professor of Chung-ang University)

Jacques Adnet
(Professor of Consevatoire Supereur de Paris)

Jacques Mauger
(Professor of Folkwang Musichochschule in Essen, Germany)

Jang Jun-hwa
(Professor at Yeonsei University, Korea)

Jeffery Funderburk
(Professor at the Northern Iowa State University)

Jay Krush
(Lecturer in Tuba and Euphonium at Temple University)

John Thomas
(Member of the Chestnut Brass Company)

Kim Young-yul
(Professor at Seoul National University)

Kaoru Tsuyuki
(Lecturer at the Aichi Prefectual University of Fine Art & Music)

Larry Zimmerman
(Principal Trombonist of the Duluth-Superior Symphony Orchestra)

Lee Cheol-woong
(Principal Trombonist of KBS Symphony Orchestra)

Lee Jung-saeng
(Former member of Seoul Philharmonic Orchestra)

Lee Dong-ho
(Chief Conductor of Jeju Philharmonic Orchestra)

Lee Kang-il
9Professor at Keimyoung University, Korea)

Maro Abe
(Instructor of Kunitachi College of Music)

Martin S. Reeds
9Member of Los Angeles Philharmonic)

Marian Hesse
(Member of the Chestnut Brass Company)

Michael Junghans
(Member of Buccina Ensemble ‘Bonn’)

Max Sommerhalder
(Professor at Hochschule fur Musik Detmold, Germany)

Park Yun-geun
(Lecturer at the Korean National University of Arts)

Suh Hyun-suk
(Professor at the Korean National University of Arts)

Sumiharu Arima
(Sub President of Japan Horn Society)

Steven Mead
(Professor at Royal Northern College of Music)

Yeh Shu-han
(Professor at National Taiwan Normal University)

Yoo Sung-joo
(Principal Tuba of the Chung-nam Philharmonic Orchestra)