Dr. Koo, Chun is a Korean conductor and educator of choral music who actually   serves as the 9th artistic director and conductor of the National Chorus of Korea.  Known for his “outstanding/excellent music interpretation,” Dr. Koo had spent two decades in the National Choir as the singer as well as the assistant conductor. 

During the early years in the Choir, Dr. Koo also became interested in choral conducting as he was fascinated by the conductor, Youngsoo Nah and his musical interpretation.  
Dr. Koo had learned everything about choral conducting under the guidance of the conductor, Youngsoo Nah who became Koo Chun's mentor later.  Eventually, Koo Chun received the Doctor of Musical Arts degree in Choral Conducting at the University of Gwangju in South Korea.

Prior to his work from 1988 to 2005, he had taught the choral music at Chu-Gye University. He also had lectured at Jeonju University, Chonnam National University, Kunsan National University, Yeungnam University, and University of Ulsan.  Since 2005, he has taught as professor at the University of Gwangju.

Dr. Koo began his career in choral conducting, as he became the principal conductor at the Jeonj Civic Choir in 2000. During his eight-years tenure, the Jeonju Civic Choir was invited to the Jeju International Choral Festival for five consecutive years and the choir was considered as one of the tops in the country. In 2005, the choir had Midwest touring in the United States which was the their first overseas performance. 

Dr. Koo became the director and the chief conductor for the Gwangju Metropolitan Choir in 2007.At that time, He was focused on his energy bringing up the musical quality of the choir. In 2008, his choir was the first choir from Korea to be invited to the Japan Choral Association Seminar in Ciba. The attendance of the Seminar hailed the choir’s performance as “a wondrous experience."

In 2012, Dr. Koo was invited to become the artistic director and the conductor for Ulsan Metropolitan Choir. In 2014, the Choir was invited to NCACDA to perform in front of the choir world. In July of 2014, Dr. Koo was appointed as the 9th artistic director of the National Chorus of Korea as he devotes himself for Korean choirs’ global recognition.
 

Yuka Maeda is a Japanese pianist. 
M.A. in the field of the music at the Kobe University with Prof. Fumio Tamura. She wrote master’s thesis “The Systematization on the piano works of Henri Dutilleux -Regarding Mirrored Structure-”. Also she studied conducting with Prof. Yoshio Saida. Diplôme de Piano at Ecole Normale de Musique de Paris with Prof. Odile Delangle. Her performance of Dutilleux and Liszt was highly appreciated by Mr. David Lively , a jury. She is in a Doctoral Course at the Tokyo University of the Arts.

She has been playing at many concerts of contemporary music. She was invited to Daegu International Contemporary Music Festival 2010, and played her own piece. She gave the recital in 2015 at Kobe and the courses (“The sound and the color after Debussy” by Nhk Gakuen at Nishinomiya in 2014”, “Architecture and Rhythm” by U-35 of the Architectural Association of Japan in 2016 etc.) She won the prize of “Evolution Series by the Phoenix hall”at Osaka, also gave a recital in 2018(“L’esquisse,l’espace et l’esprit of contemporary music in France“) 
And she has been accompanying choirs (JCA of Hyogo, Erde of Kobe University, Glee club of Kobe University, and Mixed Chorus Augment etc.). Since 2012 she has been actively participating at the “Pray From Kobe” by JCA of Hyogo. She was played to JCA Junior Chorus Festival with Ms. Lyn Williams in 2012. Also, she gives a guest performance with many lovely choirs and many wonderful conductors.
She teaches piano and solfège to Kobe University and Baika Women’s University.
 

Johan Rooze studied Piano and Conducting at the Utrecht Conservatory, the Netherlands. Later he went to the U.S. to specialize in Jazz Piano, Singing and Arranging. He was founder and 23 years Musical Director of the Utrecht University Vocal Group “Dekoor”. They won many prices, The Dutch Choir Festival, The International Vocal Group Festival and the “Idols for choir” TV show, “Korenslag” 2007 in the Netherlands.

He was Conductor of the Utrecht Student Symphonic Choir and Orchestra. With his choirs he toured all over the world. He founded the “Dudok-Ensemble”, an outstanding project choir, conducted the monthly Bach Cantatas in Utrecht and was guest conductor with the National Radio Choir. He was Professor for Vocal Jazz, Conducting and Arranging at the Conservatories of Rotterdam and Alkmaar, a member of the board of Musical Advisors for the Dutch Royal Christian Music Association and Artistic Director for the International Choir Festival, Netherlands 2005. In 2008 he moved to South Korea and teaches Choral Music and Jazz Piano at the Yeongnam University. He is musical director of Yaenoeul Jazz Singers and in 2010 he founded the professional Daegu Students Choir. He is a frequent guest conductor with other choirs. Besides his choral work he is very active as a Jazz Pianist and Arranger. He works as Artistic Director for “Interkultur” and is a frequently asked adjudicator, speaker and workshop-leader internationally.