Otoniel Cristiano dos Santos was born in the city of Curitiba, Brazil, in 1995. He started his musical studies at age 8, in Assembly of God church. At 13 years old, joined the Martial Band of Pinhais, when he started to take lessons with Fernando Deddos.
He has participated in various music festivals, including the cities of Curitiba, Londrina, Pelota, Santa Fé (Argentina) and ITEC (International Tuba Euphonium Conference) in the city of Linz, Austria.
He has performed several times as soloist, with different orchestras in Brazil.
Otoniel also won several competitions, in 2011 won the prize for best soilist of Curitiba Music Festival and took the second place in the category Young Artist Division Solo Euphonium in ITEC, Austria. In late 2012, he won in the category soilist the famous brazilian musical competition Pré-estreia, sponsored by TV Cultura, a national TV channel.
Currently, he is studing at Escola de Música e Belas Artes do Paraná, taking classes with Silvio Spolaore, the trombone player of Symphony Orchestra of Paraná.