Roberto Díaz Trio at the Library of Congress
Violist Roberto Diaz (former principal violist of the National Symphony) was especially impressive, since he now has a full-time job running the Curtis Institute. There was no rust whatever on his administrator fingers; the sound poured out with confidence and élan.
The Washington Post
Friends of Chamber Music of Miami
As the audience at Gusman Concert Hall listened to a performance of Mozart’s Piano Quartet No. 1 in G Minor on Monday evening, there was little hint of the mighty struggle it took over the past few days to bring that work and this concert to the stage.
South Florida Classical Review
Cincinnati Chamber Orchestra
Guest artist in Schnittke’s tenebrous Monologue was violist Roberto Diaz. Former principal violist of the Philadelphia Orchestra, now president of Philadelphia’s Curtis Institute of Music, Diaz met the challenge of both extremes handily. Not incidentally, he also demonstrated what the viola can do.
Music In Cincinnati
Columbus Symphony Orchestra
Violinist Charles Wetherbee (symphony concertmaster) and guest violist Roberto Diaz then joined the orchestra for Jonathan Leshnoff's Double Concerto for Violin, Viola and Orchestra. This performance marked the Ohio premiere of Leshnoff's 2007 work.
The Columbus Dispatch