text: His music was influenced by both Brazilian folk music and by stylistic elements from the European classical tradition , as exemplified by his Bachianas Brasileiras ( `` Brazilian Bachian-pieces '' ) .
simplified: His music was influenced by both Brazilian folk music and by classical music from Europe . The music of Johann Sebastian Bach was especially important for him , and he composed several pieces called Bachianas brasileiras by which he meant : Brazilian music in the style of Bach .