String trio String trio A string trio is a group of three string instruments or a piece written for such a group. The term is generally used with reference to works of chamber music from the Classical period to the present. From at least the 19th century on, the term "string trio" with otherwise unspecified instrumentation normally refers to the combination violin, viola and cello (cf "string quartet", "piano trio" etc.). This is how the term is used by major catalogs, including IMSLP. The earliest string-trio form, found in the early Classical period, consisted of two violins and a cello, a grouping
String Quartet No. 15 (Villa-Lobos) String Quartet No. 15 (Villa-Lobos) String Quartet No. 15 is one of a series of seventeen works in the medium by the Brazilian composer Heitor Villa-Lobos, and was written in 1954. A performance lasts approximately nineteen minutes. Villa-Lobos composed his Fifteenth Quartet in 1954, working on it at the Tamanaco Hotel in Caracas, Venezuela and completing the score in New York. It was first performed by the Juilliard String Quartet (Robert Mann and Isidore Cohen, violins; Raphael Hillyer, viola; Claus Adam, cello) on 19 April 1958 in the Coolidge Auditorium of the Library of Congress, Washington, D.C., as part of