Waldir Calmon (1919–1982) was a Brazilian pianist, composer, and bandleader known as a pioneer of lounge and dance music in Brazil. Renowned for his smooth piano style and inventive arrangements, he blended samba, bolero, and jazz influences into an accessible, elegant sound that defined mid-20th-century Brazilian nightlife. Leading his orchestra through countless performances and recordings, including hits like the popular album *Feito Para Dançar*, Calmon became a key figure in Brazil’s postwar entertainment scene and a lasting influence on the evolution of Brazilian popular music.