She was born in the largest city in southern Brazil; a port town on Guaíba River. As a very young girl she began playing the violin before changing to classical guitar. Her talents were such that by her early teens she was performing at concerts throughout the country. While at university she began taking singing lessons and very quickly developed her outstanding voice.
In addition to global touring with the orchestra, Maffioletti has performed as a soloist on several of Rieu's albums and has appeared in his PBS television broadcasts in the United States.