About the Artist

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Chicago native Claude Sim enjoys a varied career as a chamber musician, orchestral leader, soloist, and multi-genre performing artist.

He studied violin performance at the Oberlin Conservatory of Music (BM '99) with Greg Fulkerson, Almita Vamos, and viola with Roland Vamos. 

At age 21, he was appointed Associate Concertmaster of the Colorado Symphony under music director Marin Alsop. As frequent soloist with the orchestra, he has earned praise for his 'lustrous tone and poise' by the Rocky Mountain News, and dubbed ‘Denver’s Musical Adventurer’ by the Denver Post. He was formerly a member (Associate Principal Second) of the Baltimore Symphony Orchestra and has served in numerous guest artist capacities, including guest Concertmaster of the Kansas City Symphony, Principal Second Violin of the National Arts Centre Orchestra of Ottawa, and section first violin with the Philadelphia Orchestra. 

Equally at home performing on violin and viola, Sim has been a grand prizewinner at the Fischoff National Chamber Music Competition. He has served as guest first violinist and violist with the critically acclaimed Miró and Pacifica Quartets, and has collaborated in concerts with acclaimed pianists Christopher O'Riley, Piers Lane, Jeffrey Kahane, and members of the Vermeer and Tokyo String Quartets.

A passionately committed educator, he maintains a private violin studio and has served on the string faculties of the University of Colorado Denver and Colorado State University in Fort Collins. 



Sim is the solo violinist of Extasis, the noted tango ensemble with a studio CD to their credit. The quartet’s masterful arrangements of works by Osvaldo Pugliese and Astor Piazzolla lean heavily towards the Golden Age of Tango. His work with Extasis led to a collaboration with celebrated bandoneón master and Piazzolla colleague, Raul Jaurena. 

Known for his multi-genre interests, Sim’s 2006 jazz album Time With You presented a collection of standards from the American Songbook. Trumpeter Greg Gisbert (Wynton Marsalis, Clark Terry sideman) was featured as guest on the record. More recently, he joined Hamilton star Leslie Odom Jr. and Odom’s jazz quintet as guest soloist for a live performance.

Claude Sim has shared the stage with Irish American fiddler Eileen Ivers, Warren Haynes (Allman Brothers Band, Gov't Mule), rock band Guster, and with the iconic Denver rock band Devotchka, both live and on the album 100 Lovers. He performed as a duo with banjo master Béla Fleck on a 2014 Colorado tour, culminating at the Telluride Bluegrass Festival.

Sim’s all-instrumental group Spacefly plays a genre-bending hybrid of his original music. He plays on a custom electric octave 5 string mandolin crafted by Scott Walker. The group features guitarist Dan Schwindt (Kyle Hollingsworth Band), bassist Eduardo "Bijoux" Barbosa, and drummer Dean Oldencott.

In 2018, he joined the Aaron Walker Quartet, specializing in exploring modern and standard Gypsy jazz.