Roots of Ludwig van Beethoven

Heitor Villa-Lobos was a Brazilian composer, conductor, cellist, and classical guitarist described as "the single most significant creative figure in 20th-century Brazilian art music". Villa-Lobos has globally become one of the most recognizable South American composers in music history. A prolific composer, he wrote many orchestral, chamber, instrumental and vocal works, totaling over 2,000 pieces by his death in 1959. His music was influenced by both Brazilian folk music and stylistic elements from the European classical tradition, as exemplified by his Bachianas Brasileiras and his Chôros. His Etudes for classical guitar (1929), dedicated to Andrés Segovia, and his 5 Preludes (1940), dedicated to his spouse Arminda Neves d'Almeida, a.k.a. "Mindinha", are important works in the classical guitar repertory.

Carl Philipp Emanuel Bach, also formerly spelled Karl Philipp Emmanuel Bach, and commonly abbreviated C. P. E. Bach, was a German composer and musician of the Baroque and Classical eras. He was the fifth child and second surviving son of Johann Sebastian Bach and Maria Barbara Bach.