The three etudes offer the accomplished oboist a variety of opportunities to demonstrate their technical and musical skills. The nearly ten-minute sequence of movements has clear references to South American music and impresses with its strong rhythmic and melodic contrasts. The piano part is of medium difficulty and offers rewarding pianistic challenges.

Jóse de Lima Siqueira (1907–1985) joined the Banda Sinfônica da Escola Militar in Rio de Janeiro as a trumpet player in 1927. From 1928 to 1933, he studied composition and conducting with Francisco Braga and Walter Burle Marx at the Instituto Nacional de Música. José Siqueira worked as a conductor in various countries, including the United States, France and Belgium. He founded several orchestras in Brazil, including the Brazilian Symphony Orchestra in 1940, the National Symphony Orchestra in 1961 and the Brazilian Chamber Orchestra in 1967. In 1953, he conducted the Orchestre Radio-Symphonique in Paris and studied musicology at the Sorbonne. He then became a professor at the Universidade do Brasil and published textbooks in addition to his compositions. In 1969, the military dictatorship banned him from working, and he was not allowed to teach or conduct. He went into exile in the former Soviet Union, where he worked as conductor of the Moscow Philharmonic Orchestra, among other things. In addition to numerous chamber music works for various ensembles, he composed operas, oratorios and symphonies.