↑ Richard Hudson and Meredith Ellis Little, "Sarabande: 1. Early Development to c1640", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie và John Tyrrell (London: Macmillan Publishers, 2001).
↑ Giuseppe Gerbino and Alexander Silbiger, "Folia", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie và John Tyrrell (London: Macmillan Publishers, 2001); Elaine Sisman, "Variations, §3: Variation Types", The New Grove Dictionary of Music and Musicians, second edition, edited by Stanley Sadie và John Tyrrell (London: Macmillan Publishers, 2001).
