Symphony instruments, 19th century symphonies were gradually augmented with more string players and more wind parts, so that the orchestra grew substantially in sheer numbers, as concert halls likewise grew. At the beginning of the 20th century, Gustav Mahler wrote long, large-scale symphonies. His Eighth Symphony, for example, was composed in 1906 and is nicknamed the "Symphony of a Thousand" because of the large number of voices required to perform the work. Additionally, his Third Symphony is one of the longest regularly performed symphonies at around 100 minutes in length for most performances. The 20th century also saw further diversification in
Symphony No. 4 (Chávez) Symphony No. 4 (Chávez) Symphony No. 4, subtitled "Sinfonía romántica" (Romantic Symphony) is an orchestral composition by Carlos Chávez, composed in 1953. The score was commissioned by and is dedicated to the Louisville Orchestra, which premiered the work on 11 February 1953, conducted by the composer. After the first few performances, Chávez decided that the final movement, though sound in itself, was not satisfactory as a conclusion to this symphony. Consequently, he composed a new finale in October 1953, and published the original movement as a separate work, titled "Baile (cuadro sinfónico)" (Dance, Symphonic Picture) . The Symphony is scored