Sérgio Barrenechea was born in Brasília, Brazil, where he started his musical studies at the Escola de Música de Brasília. He received his BM from the Universidade de Brasília, where he studied with Odette Ernest Dias and his MM from The Boston Conservatory, where he was a student of William H.Grass. He received his DMA in Flute Pedagogy and Performance from the University of Iowa and the title of his dissertation is "The Flute Music of Francisco Mignone with an Analysis of the Sonata for Flute and Piano.“
Mr. Barrenechea has played in masterclasses for Julius Baker, Walfrid Kujala, Carol Wincenc and Keith Underwood. He has been featured as soloist with the La Fosse Baroque Ensemble, the Orquestra Filarmônica de Goiás and the Orquestra Jovem de Brasília. He was principal flute with the Orquestra Filarmônica de Goiás and flute professor at the Escola de Música e Artes Cênicas of the Universidade Federal de Goiás.
He has been twice awarded with a Brazilian scholarship from CAPES. Mr. Barrenechea was principal player with the Orquestra Filarmônica de Goiás and acted as extra with the Orquestra do Teatro Nacional Cláudio Santoro and the Cedar Rapids Symphony Orchestra. He participated to Center for New Music concerts from 1997 to 1998. He also has been in the faculty of the CIVEBRA Music Festival in Brasilia (2002-2005, 2007 and 2009). Mr. Barrenechea has been featured as flutist with the Quinteto Brasília and Quinteto Villa-Lobos.
In 2013, he presented a 60-cities tour with Quinteto Brasília, promoted by SESC and its Projeto Sonora Brasil travelling to cities of South and Southeast regions of Brazil.
Since 1989, forms with his wife, the pianist Lúcia Barrenechea, the Duo Barrenechea, developing intense chamber music activities with the flute and piano combination. The Duo Barrenechea released, in 2008, their first commercial CD Moments in Paris, with French music.
In 1997, he published through the Universidade Federal de Goiás publishing house – CEGRAF - the book “Música de Câmara para Flauta” with works for flute by the Brazilian composer Estércio Marquez Cunha. In 2000, he published a chapter, "Valorizando a tradição e a experimentação: a flauta na música de câmara de Francisco Mignone", in the bookTrês Estudos Analíticos: Villa-Lobos, Mignone e Camargo Guarnieri , published by the Graduate Program at Universidade Federal do Rio Grande do Sul. He was, from 2003 to 2005, Dean of Graduate Studies in Music at the Universidade Federal de Goiás, ans also president of the Sociedade Goiana de Música from 2001 to 2006. He currently holds a teaching position at UNIRIO´s Instituto Villa-Lobos, Universidade Federal do Estado do Rio de Janeiro, including research and advising activities at its Graduate Program.