She has received viola master classes with renowned violists Joseph de Pasquale (1919-2015) (Curtis Institute of Music), Veronica Hagen (Hagen Quartet, Universität Mozarteum Salzburg), Diemut Poppen (Queen Sofia School of Music), Wilfried Strehle (Berlin University of the Arts, first viola of the Berlin Philharmonic Orchestra), Predrag Katanic (Anton Bruckner Privatuniversität Linz), among others.
In 1977 she won second place in the Competition for Violists organized by the Luis Angel Arango Library of the Banco de la Republica and in 2000 she won first place in the Competition for Young Performers “Roberto Mantilla Alvarez” organized by the Symphony Orchestra of Colombia.
In her 10 years of residence in Austria, she played with the orchestras Salzburg Chamber Soloist, Salzburg Kammer Philharmonie and Junge Philharmonie Salzburg. She was a special guest of the orchestras Prague Kammer Philharmonie, Camerata Salzburg, Koreanischen Philharmonie and Deutsche Kammerakademie Neuss, with which she had the opportunity to participate in concerts and festivals in Europe, Japan, China, Russia, Lebanon and the United States.
In Colombia she has performed as a soloist accompanied by the most renowned orchestras, including the Orquesta Filarmónica de Bogotá, Orquesta Sinfónica de Colombia, Orquesta Filarmónica de Cali, Orquesta Sinfónica del Tolima and Fundación Orquesta Sinfónica de Bogotá. In 2015 she was invited to play with the Mahler Chamber Orchestra at the Cartagena International Music Festival and in 2017 she was invited by the Bogota International Music Festival to play with soloists Julian Rachlin, Alexander Buzlov, Alissa Margulis, Sara McElravy and Daniel Müller Schot.
In the field of teaching she has offered master classes in different institutions in Colombia and among the pedagogical collaborations with the Q-Arte Quartet, it is worth mentioning her work at The University of Chicago, Chicago Columbian College, Jacobs School of Music Indiana University, University of Kent in the United States and at the Instrumenta Oaxaca Festival in Mexico.
Sandra Arango is the creator and founder of the Interviolas Bogota Festival, which began in 2010, and of “Noche de Violas”, an activity created as a prelude to this festival. Together with the Q-Arte Quartet she created the International String Quartet Festival FestiQ-Artetos, a biannual event that has been held since 2014.
She is currently the violist of the Cuarteto Q-Arte, violist of the Orquesta Filarmónica de Bogotá, special guest of the Orquesta de Cámara de Colombia and professor of the viola chair at the Conservatorio de Música de la Universidad Nacional de Colombia and the Pontificia Universidad Javeriana.