He is one of the Argentine saxophonists who have most developed the inclusion of his instrument in the language of tango. His personal stamp can be heard on the recordings as a leader and as a guest of other artists. In his compositions, he displays music based on tango, jazz gestures and academic procedures, which places him in an area of originality. He toured Argentina, South America, the United States and Europe, performing in theaters, festivals, cultural centers and universities, as well as giving master classes in educational environments in America and Europe.
He is the author of “El tango desde el saxo”, a book commissioned by Melos Ediciones Musicales and dedicated to the interpretation of Buenos Aires music with the saxophone.
Retamoza regularly plays as a guest soloist of Argentine and foreign orchestras. He premiered his works Concierto para Saxo Tenor, Bandoneón and Orquesta; Tres Escenas Porteñas, for two Bass Clarinets and Symphonic Band; En Blanco y Negro Buenos Aires for Bandoneón and Six Percussionists; Concertango for Baritone Sax and Orchestra, National Endorsement of the Arts of Argentina 2016 Award.
As a composer, he also wrote music for television and radio, for installations in galleries and museums, as well as for animation films. In 1998 he won by contest the position of baritone saxophone in Buenos Aires Symphonic Band. He is a professor of saxophone at the Argentine Music Chair of the Manuel de Falla Conservatory of Music of Buenos Aires.
He played with outstanding artists such as Isabel Pantoja, Sandro and Celia Cruz. He received awards and scholarships from the Metropolitan Fund for Culture (2006), Latin American Short Films Festival in New York (2007), Tribune of Argentine Music UNESCO (2008), National Institute of Music of Argentina (2015), National Endorsement of the Arts of Argentina (2016), National Institute of Music Argentina (2018)