Philadelphia Orchestra

“…in Bartók’s monstrously difficult violin concerto, Díaz…had the piece under his fingers as firmly and elegantly as Serkin had Mozart, or Heifetz had Tchaikovsky.”

PHILADELPHIA INQUIRER 

Washington, D.C. recital

“…put the viola in the hands of Roberto Diaz and any preconceptions evaporate within several measures…[he] surely made believers out of those at the Phillips Sunday afternoon.”

WASHINGTON POST

Kansas City Symphony

"The Kansas City Symphony concluded my weekend with the extraordinary violist Roberto Díaz, whose Bartók Concerto displayed warmth and incisive detail. In the big Romantic tunes, Díaz' viola sang like the gutsiest of mezzo-sopranos, while the rapid filigree had a delicate sheen."

KANSAS CITY STAR

Buffalo Symphony Orchestra

"The first half also had its brilliant moments, chiefly in the hands of violist Roberto Diaz, who just ripped wonderfully into the Bartók Viola Concerto."

BUFFALO NEWS

Philadelphia Orchestra

“Diaz went far beyond mere technical mastery and full-bodied tone and entered the rarer realm of artistry…[he] didn’t utter a single routine statement [Berlioz Harold in Italy].”

PHILADELPHIA INQUIRER

CD review

“… a rich, deep, mellifluous tone, impeccable intonation, an attractive, even vibrato, a nimble left hand, a smooth bow arm, and an excellent sense of timing and tempo. All these qualities make him a real star of his instrument…”

AMERICAN RECORD GUIDE