He began his music studies at the age of 9 at the ”Escuela Integral para las Artes Judith Jaimes” of San Cristóbal, Táchira.

Between 2004 and 2008, he studied orchestral conducting with Sung Kwak, Wolfgang Trommer, Collin Meters, Helmuth Rilling, Mario Benzecry, Rubén Capriles and Francisco Noya.

In August 2008, Rosales attended the George Hurst Conductors’ Course at the Canford Summer School of Music in England.

In July 2013, he conducts the SBYSB on his first European tour of five countries of the old continent - France, Belgium, Switzerland, the Netherlands and Spain, offering concerts in prestigious venues and participating in large bands festivals, highlighting the "World Music Contest" in Kerkrade-Netherlands and the "International Competition of Bands" city of Valencia in Spain.

In June 2015, assumed the commitment to record the Concerto for Clarinet Jan van der Roost, with renowned clarinetist Eddy Vanoosthuyse and the ”Central Aichi Symphony Orchestra” in the city of Nagoya, Japan.