Reveille Staff

Artistic Director - SHAWN CULLEN

Shawn Cullen, educator, conductor and artistic director, has quickly earned a reputation for his high-energy teaching style and fresh, innovative artistic nuance. Over the past 10 years Cullen has held positions as Director of Bands/Vocal Music/ Theater Arts and Fine Arts Mentor Teacher with Tucson Unified School District as well as Adjunct Faculty in the School of Music at the University of Arizona.  

In a short time, Mr. Cullen has enjoyed a diverse professional career as a versatile and multifaceted musician continuing to set himself apart from others with his eclectic background and dynamic style. As a performer Cullen has traveled throughout the United States, Mexico and South America as a vocalist, instrumentalist and conductor. Now in his 6th year as a GALA Choruses conductor and 6th season with Reveille, Mr. Cullen has continued his exciting artistic vision including leading Reveille to their historic 2013 debut performance with the Tucson Symphony Orchestra for “Broadway Rocks!" and their most recent international performance in Puerto Vallarta, Mexico this past  May, 2014. Also in May, after a year as interim conductor, Cullen was named Artistic Director/Conductor for Desert Voices, Tucson’s premier gay, lesbian, bisexual, and transgender chorus dedicated to bringing with a mission of "Fostering Community through Song". This appointment makes Cullen among the few conductors nationally to serve as Artistic Director for multiple GALA Choruses.
In the teaching world, award-winning ensembles under Mr. Cullen’s direction have been the recipients of the “Arizona Arts Spotlight Award” and “Superior and Superior with Distinction” ratings at competitions held in Arizona and California. Students from Mr. Cullen’s programs have gone on to receive acceptance in such prestigious music programs as The Julliard School, The New England Conservatory, Berklee College of Music, and the Manhattan School of Music. Cullen currently holds the position of Principal Conductor for ART (Arizona Repertory Theater)  The University of Arizona School of Theatre, Film & Television’s Professional Training Company with recent conducting credits including “Into the Woods”, “Secret Garden”, “Batboy: The Musical”, “Avenue Q”, “Nine”,  “Oklahoma!”, "The Full Monty", and Sondheim’s "A Little Night Music".
Mr. Cullen holds a Bachelor’s of Music Education and a Master’s of Music in Conducting from the University of Arizona. Mr. Cullen is a proud member of GALA Choruses, American Choral Director’s Association, Arizona Music Educator’s Association, and the National Association for Music Education.
Assistant Conductor - KEITH KOSTER
Singing since the age of three and directing choirs since 15, Keith feels blessed to be doing both with Reveille Men’s Chorus in his second year with the group. An educator for Amphi Schools, Keith has taught chorus and musical theater to middle and high school students since 2001. He is Creative Worship Director, accompanist and bandleader for Shelter at Saguaro Christian Church, designing and creating worship weekly, bringing ancient and modern together for a unique and experiential worship experience. 
Just months after coming out, Keith found himself directing Detroit Together Men’s Chorus’ premiere performance at a pride event at the state fairgrounds where he ran into his cousin! He is founder and past Artistic Director of Great Lakes Men’s Chorus and past Artistic Director of Desert Voices. He served on the GALA Board for four years, his legacy being the creation of youth policies to include GLBTQ youth in GALA Choruses and events. These policies led to the creation of several queer youth choruses around the nation. 
Keith is an active member of Arizona Educators Association, American Choral Directors Association and Association of Disciples Musicians.
Accompanist - KYUNGSUN CHOI
Kyungsun Choi, DMA, has been enjoying a varied career as a soloist, chamber musician, accompanist and teacher. He has given numerous solo recitals and chamber recitals both in South Korea and USA. In addition, he has worked as a choir pianist and an opera pianist/coach. The opera productions that he has participated in were varied including Mozart, Puccini, Verdi, Bizet, Mascagni, Sondheim, Mechem, Menotti, and Bernstein. A native of Seoul, South Korea, Pianist Kyungsun Choi graduated from Yonsei University in Seoul, where he earned Bachelors degrees in Piano Performance. He went on to University of Northern Iowa on a full tuition scholarship where he received a Masters of Music under Prof. Sean Botkin and served as a graduate teaching assistant. Kyungsun has recently received his doctoral degree in Piano Performance under Dr. Paula Fan. Dr. Choi has served as accompanist with Reveille Men’s Chorus since 2007.
Chorus Manager - MIKE WHITE