One of the most sought-after soloists and chamber music collaborators of his generation, Orion Weiss is widely regarded as a “brilliant pianist” (The New York Times) with “powerful technique and exceptional insight” (The Washington Post). With a warmth to his playing that outwardly reflects his engaging personality, Weiss’s “delicate, even fingerwork” (Washington Classical Review) and “head-spinning range of colors” (Chicago Tribune) have dazzled audiences around the world. He has performed with all of the major orchestras of North America, including the Chicago Symphony Orchestra, the Boston Symphony Orchestra, the Los Angeles Philharmonic, and the New York Philharmonic.

Grace Park is a violinist celebrated for her artistry, passion, and virtuosity. Praised by the San Francisco Chronicle as “fresh, different and exhilarating” and by Strings Magazine for her “intensely wrought and burnished” sound, she captivates audiences worldwide. A winner of the Naumburg International Violin Competition, Ms. Park is recognized both as a dynamic soloist and a devoted chamber musician. Ms. Park’s most recent solo debuts include the Colorado Music Festival, Bard Festival under the baton of Leon Botstein, Stern Auditorium at Carnegie Hall with the New York Youth Symphony, The Rudolfinum/ Dvorak Hall in Prague with Prague Philharmonia, and recital debuts at Krannert Center, Beethoven Minnesota Festival and Merkin Hall.  

Todd Phillips made his solo debut with the Pittsburgh Symphony at the age of 13 and has appeared with many orchestras throughout the U.S., Europe and Japan since then, including the Brandenburg Ensemble, Jacksonville and Honolulu symphonies, Camerata Salzburg and Orpheus Chamber Orchestra.Phillips is a founding member of the highly-acclaimed Orion String Quartet, which has been the quartet-in-residence at the Chamber Music Society of Lincoln Center, Mannes College of Music and Santa Fe Chamber Music Festival.

Noted for his “expressive warmth” (Chicago Classical Review), San Antonio-based violinist Brendan Speltz serves as Director of Artistic Programming for Chamber Connexions at The Orchestra San Antonio. A former member of the internationally acclaimed Escher String Quartet, he has appeared at the Chamber Music Society of Lincoln Center, Aspen Music Festival, Santa Fe Chamber Music Festival, Savannah Music Festival, and Wigmore Hall. Committed to expanding the reach of classical music, Mr. Speltz has created innovative concert experiences across the U.S. and Canada, described by The New Yorker as “thrilling, poignant, unexpected, and utterly DIY.”  He has toured with ensembles including A Far Cry, Ethel, Harlem Quartet, and the Manhattan Chamber Players, and has performed with the Mark Morris Dance Group, American Ballet Theatre, and Orchestra of St. Luke’s.  Mr. Speltz holds degrees from the University of Southern California and the Manhattan School of Music, and plays a 1925 Carl Becker violin.

Praised by The Philadelphia Inquirer for his “glowing refinement,” violist Luke Fleming’s performances have been described by The Strad as “confident and expressive…playing with uncanny precision,” lauded by Gramophone for their “superlative technical and artistic execution.” Festival appearances include the Marlboro Music School and Festival, the Steans Institute at Ravinia, Bravo!Vail, and Festival Mozaic. Formerly the violist of the GRAMMY-winning Attacca Quartet, he was awarded First Prize at the Osaka International Chamber Music Competition and top prizes at the Melbourne International Chamber Music Competition. In 2015, Mr. Fleming became the Founding Artistic Director of both the Manhattan Chamber Players and the Crescent City Chamber Music Festival, and in 2026 he was named Artistic Director of Chamber Music Monterey Bay. He currently serves on the Viola and Chamber Music faculties of the University of New Orleans, Atlantic Music Festival, Festival del Lago, and The Woodlands Chamberfest. He has performed as guest violist with the Amernet, Escher, Modigliani, and Pacifica Quartets, the Eroica, Lysander, and Gryphon Piano Trios, and the Chamber Music Society of Lincoln Center.

The New York Times has hailed cellist Andrew Janss for his “glowing tone,” “insightful musicianship,” and “sumptuous elegance.” Mr. Janss began his career as the founding cellist of the Escher Quartet, winning the CMS Two residency at the Chamber Music Society of Lincoln Center. Since then, he has performed and recorded alongside legendary Classical artists including Leon Fleisher, Richard Goode, and Itzhak Perlman, as well as chart-topping artists Norah Jones, Paul McCartney, Lana Del Rey, and Bruce Springsteen. He has performed as Guest Principal Cellist of the St. Paul Chamber Orchestra and the American Symphony Orchestra, and as a cellist at the Marlboro, Music@Menlo, Santa Fe, La Jolla, Aspen, and Ravinia Music Festivals. His principal teachers include Andrew Cook, David Geber, Clive Greensmith, and David Soyer.

Peter Stumpf is professor of cello at the Indiana University Jacobs School of Music. Prior to his appointment, he was principal cellist of the Los Angeles Philharmonic. Stumpf's tenure in Los Angeles followed 12 years as associate principal cellist of the Philadelphia Orchestra. His professional orchestral career began at the age of 16 when he joined the cello section of the Hartford Symphony Orchestra. He received a bachelor's degree from the Curtis Institute of Music and an Artist's Diploma from the New England Conservatory.