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Roberto Díaz

Roberto Díaz is a Chilean-American violist, and the president/director of the Curtis Institute of Music, of which he is an alumnus. From 1996 to 2006 he held the position of principal violist of the Philadelphia Orchestra, and has been principal viola of the National Symphony under Mstislav Rostropovich, a member of the Boston Symphony under Seiji Ozawa, and a member of the Minnesota Orchestra under Neville Marriner. He is the violist in the Díaz Trio, which includes cellist Andrés Díaz (his brother) and violinist Andrés Cárdenes, former concertmaster of the Pittsburgh Symphony Orchestra.

Also recorded as Roberto Diaz

Roberto Díaz

Roberto Díaz performs on the Library's 1690 "Tuscan-Medici" viola by Antonio Stradivari during a concert celebrating the viola's acquisition by the Library, May 14, 2025. Photo by Shawn Miller/Library of Congress.

Library of Congress Life · CC0

Name
Roberto Díaz
Birthplace
Chile
Occupation
violist, president/director of the Curtis Institute of Music
Born
1950 · Chile.
Nationality
United States
Fields
classical music
Education
Curtis Institute of Music
Honours
honorary doctor of Bowdoin College

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Roberto Díaz is a Chilean-American violist, and the president/director of the Curtis Institute of Music, of which he is an alumnus. From 1996 to 2006 he held the position of principal violist of the Philadelphia Orchestra, and has been principal viola of the National Symphony under Mstislav Rostropovich, a member of the Boston Symphony under Seiji Ozawa, and a member of the Minnesota Orchestra under Neville Marriner. He is the violist in the Díaz Trio, which includes cellist Andrés Díaz (his brother) and violinist Andrés Cárdenes, former concertmaster of the Pittsburgh Symphony Orchestra.

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  1. 01Biography
  2. 02Notes, references and evidence

The Encyclopedia exists whether or not anything is for sale. Corrections are recorded rather than overwritten, and every version of this record is kept. Published 18 August 2026.

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