
Hungarian-born Annamaria Karacson (Concertmaster) has resided in Boulder with her family since 1986. After completing her studies at the Franz Liszt Academy of Music in Budapest, she became assistant concertmaster of the Hungarian Opera and Philharmonic Orchestras and of the Festival Orchestra, which she also helped establish. She won first prize in the Hungarian Opera's violin competition and was a recipient of the Bartók-Pásztory award. Ms. Karacson continues her orchestral playing in Colorado as assistant concertmaster of the Boulder Philharmonic, the Boulder Bach Festival and concertmaster of the Mahler Festival orchestras. She is also an active chamber musician and has appeared with University of Colorado music faculty members on numerous occasions and is first violinist of the Columbine String Quartet.

Hailing from Budapest, Hungary, Gyöngyvér (Georgina) Petheö (Principal Violin II) is a dedicated violin instructor, an entrepreneur and an active performer in the Boulder and Denver region. She began her career in the Hungarian Symphony Orchestra and subsequently settled in Colorado in 1986. She has since performed as a professional violinist with the Central City Opera Orchestra, Boulder Bach Festival Orchestra, Boulder Philharmonic Orchestra, Colorado Symphony Orchestra, Greeley Philharmonic Orchestra and Colorado Ballet, among others.
Georgina’s biggest passion for music lies in teaching. She received her music diploma with a concentration in violin pedagogy from the prestigious Franz Liszt Academy of Music in Budapest, Hungary. As well as maintaining a private studio, she has been on the faculty the Parlando School for the Arts in Boulder, Colorado, and the Rocky Mountain Center for Musical Arts.Georgina’s dedication to reaching the community with music has led her to join the Tiny Tots and Inside the Orchestra ensembles, which travel throughout Colorado to schools to educate young people about music. She enjoys teaching students of all ages, from very young to adult beginners, and her strengths include tailoring her teaching methods to meet her students’ specific needs. She strives to create a fun and inspiring environment for learning, while incorporating basic theory and music history to give her students a well-rounded musical education.
An avid chamber musician, Georgina has established her own small business, Columbine Entertainment, which provides chamber musicians for a special event, such as a wedding. (For more information, please visit www.columbineentertainment.com). She is a member of the Columbine String Quartet, performed in several chamber music ensembles in Hungary, and continues to enjoy collaborating with others. In the past she has been a chamber music coach at the Chamber Music Performance Week in Pingree Park as well as the former Boulder Arts Academy (now Parlando School for the Arts).
Georgina is the proud mother of David Ormai, a professional violinist in Michigan. She enjoys reading, traveling, photography, chamber music, and spending time with her family and friends in her spare time.

Clayton Vaughn is the principal cellist of the Boulder Chamber Orchestra, a member of the Greeley Philharmonic and the Fort Collins Symphony Orchestra, as well as a substitute for the Colorado Symphony Orchestra. He is also an active chamber musician who has recently performed with the Veronika String Quartet and will be a guest musician with the Walden Chamber Music Society this season.
Mr. Vaughn is also a dedicated teacher who is committed to helping his students find beautiful tone, technical ease, and artistic expression through the relationship between their instrument and natural body mechanics. He is a faculty member at the Parlando School for the Arts, was the cello Teaching Assistant for Judith Glyde from 2009 to 2012 at CU Boulder, and maintains a larger private studio.
Clayton is an alumnus of the Tanglewood Music Center, National Repertory Orchestra, Music Academy of the West, Meadowmount, and the Sewanee Summer Music Festival. He has performed in masterclasses for many renowned artists such as the Cavani Quartet, Leipzig Quartet, Ralph Kirshbaum, Kronos Quartet, Peter Salaff, Norman Fischer, David Geber, Alan Stepansky, and the Takacs Quartet. Clayton is also the Music Director of the Boulder Cello Project, a cello ensemble for adult cellists (www.bouldercelloproject.com).
Currently, Clayton is enrolled at CU Boulder where he is finishing his Doctorate in cello performance, and studies with both Judith Glyde and András Fejér of the award winning Takács Quartet. Clayton was introduced to the cello at the age of ten, and soon after began private studies with Paul York at the University of Southern Mississippi. During that time, he was also a section cellist in the Meridian and Tupelo Symphonies. Clayton went to the University of Louisville to continue his studies under Paul York and graduated in 2006 with a B.A. in Music and Humanities. For his Masters degree, Clayton studied with Dr. Melissa Kraut and Stephen Geber at the Cleveland Institute of Music. For more information, please visit his website at www.ClaytonVaughn.com.

Aniel Cabán (Principal Viola) is currently a Master of Music candidate in Viola Performance at the University of Colorado-Boulder where he studies with Professor Erika Eckert. Mr. Cabán has participated in many world-renowned music festivals some of which include Interlochen Arts Camp, Meadowmount School of Music, Festival Casals of Puerto Rico, Yehudi Menuhin Chamber Music Seminar, the Karen Tuttle Viola Workshop, and the National Repertory Orchestra in Breckenridge, Colorado. His Chamber Music experience includes studies with well-renowned musicians such as Peter Salaff of the Cleveland Quartet, The Takács String Quartet, The Cavani String Quartet, Anne Epperson, and Judith Glyde of the Manhattan String Quartet.
Mr. Cabán received a Bachelor of Music Degree in Viola Performance at the Cleveland Institute of Music (2002) where he studied with Stanley Konopka, Assistant Principal Viola of the Cleveland Orchestra. He is currently a member of the Boulder Philharmonic Orchestra.

Kevin Sylves (Principal Bass) grew up in Buffalo, NY and earned bachelor degrees in double bass performance and aerospace engineering from the University of Michigan. His double bass teachers included Stuart Sankey, Diana Gannett, Stephen Molina, Paul Bresciani, and Derek Weller. He has performed with several groups in the Boulder area including the Boulder Philharmonic and the Longmont Symphony, and served as Principal Bass with the Symphony Orchestra Academy of the Pacific in Powell River, British Columbia. His chamber music experience includes the performance of a bass quartet on the internationally broadcast radio program "Art of the States."