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Juan Sebastián began his career as a professional violist in 1998 in the Colombian Symphony Orchestra (OSC). In the second year of his admission, he held the position of assistant principal and an acting principal, required by the Orchestra's principal conductor, Irwin Hoffman.


In 2003, he won the position of principal Violist of the National Symphony Orchestra of Colombia (OSNC). He also played viola concertos as a soloist with the orchestra.


He participated on several occasions as guest principal violist of the orchestras Filarmónica del Valle, Sinfónica del Conservatorio del Tolima, Sinfónica de Bogotá among others; furthermore, he was invited to play as viola tutti of the Symphony Orchestra of Castilla y León (OSCyL) in Spain during 2006-2007.


In his youth he received violin lessons with Ernesto Diaz Almeciga, Mario Diaz, Pablo Saraví and Szymsia Bajour. He also received master violin lessons with Humberto Carfi, Ana Chumachenco and Rubén González. Juan Sebastián studied viola at the Conservatory of Music of the National University of Colombia from 2011 to 2013 with Sandra Arango and Aníbal Dos Santos. He received master classes with Joseph de Pascuale, Santiago Garmendia, Néstor Po and Pedrag Katanic and participated in Improvement course with Thomas Riebl, Orchestral conducting workshop with Luis Gorelik, Choral conducting workshop with Néstor Zadoff, and Orchestral conducting workshop with Fabio Mechetti.


In Argentina, he joined in concerts with Chamber Orchestra of San Luis, Chamber Orchestra of the Municipality of La Plata, Orchestra of the Argentine Theater, Buenos Aires Philharmonic Orchestra and Salta Symphony Orchestra. In addition, he participated in the courses Chamber Music in Bariloche and in Mendoza, and Phenomenology of Music in Santa María de la Armonía in Mar del Plata with Maestro Jordi Mora. From 2014 to 2018, he was a tutti violist of the Philharmonic Orchestra of Minas Gerais, Brazil. 


During 2018-2019, he worked as Principal Violist at the Sun Symphony Orchestra, Vietnam.