Born in Chicago, Rachel Harding Klaus studied violin with David and Linda Cerone at the Cleveland Institute of Music, where the faculty awarded her the coveted Joseph and Elsie Scharff Prize in Violin and the Dr. Jerome Gross Prize. Previous teachers have included Michael Avsharian, Steven Shipps, and Sonja Foster.

In the fall of 2004, she won the concerto competition at the Cleveland Institute of Music and performed the Bartók Concerto with the CIM Orchestra. In June of 2005, Harding Klaus was a prizewinner in the International Irving M. Klein String Competition, Kingsville, and Stulber Competition. She was also the grand prize winner of the Corpus Christi International String Competition. She has soloed with various orchestras, including the Asheville, Kalamazoo, Corpus Christi, and Colorado symphonies.

Harding Klaus is an avid chamber music player and was a violinist for many years in the Harding Piano Trio, along with her two sisters. The Harding Trio won prizes in the Fischoff, Coleman, and ASTA chamber competitions. In 2009, Harding Klaus won a position with the Colorado Symphony as Assistant Concert Master. In 2012, Harding Klaus joined the DSO as a member of the second violins, moving to the first violin section the following year.

Mike Chen received his Bachelor and Master of Music degrees from Northwestern University, studying violin with Blair Milton. In 1999 he began playing the viola and studied with Li-Kuo Chang. His other teachers included Michael Strauss, Peter Slowik, Keith Conant, and Baird Dodge.

Chen was a member of the Indianapolis Symphony Orchestra from 2012 to 2018, a member of the Saint Louis Symphony Orchestra from 2003 to 2012, and prior to that, a member of the Civic Orchestra of Chicago from 1992 to 1995. He has performed with the Detroit Symphony, Cincinnati Symphony, Minnesota Orchestra, and Chicago Symphony. In 2017, Chen joined the Cincinnati Symphony on its European Festivals Tour.

He received a master’s degree in conducting at Northwestern University in 1999, studying with Victor Yampolsky and Mariusz Smolij. His other conducting teachers include Gilbert Varga, David Zinman, and Murry Sidlin.

Chen was a conducting fellow at the American Academy of Conducting in Aspen, Colorado in 2008. He has also served as Assistant Conductor of the Saint Louis Symphony Youth Orchestra, Guest Conductor of the Webster University Community Music School’s Young People’s Symphony Orchestra, and Guest Conductor of the Indianapolis Symphony Side-by-Side Orchestra.

Christopher Hamlen joined the DSO in 2017, after serving as Principal Bass of the Grand Rapids Symphony for five seasons. Prior to moving to Michigan, he was a member of the Syracuse Symphony Orchestra for two seasons. From 2006–2009, Hamlen was a fellow with the prestigious New World Symphony orchestral training academy in Miami Beach, Florida.

Hamlen received a Graduate Performance Diploma with Robert Kesselman and a Bachelor of Music with John Hood from the Peabody Conservatory. As a young bassist, Hamlen was principal bass of numerous regional, state, and national youth orchestras, including the Music Educators National Conference All-Eastern States Honors Orchestra, and later the Peabody Symphony Orchestra. He was a member of the prestigious New York String Orchestra Seminar in 2003. In 2000, Hamlen performed the Koussevitzky Concerto with the Reading Symphony Orchestra, of which he later became a full-time member.

When he’s not playing his bass, Hamlen can be found with his family, including daughter Claire, wife Melissa, and Wheaten Terrier Penny.