Branislav Aksin finished high school in Novi Sad. Starting from the second year of high school, simultaneously taught trombone at the music school Isidor Bajic. He studied at the Faculty of Technology, University of Novi Sad. In 1979 he enrolled in the Faculty of Music in Belgrade in the class of prof. Vinko Valetic. He graduated in 1985, and obtained his MA degree in 1989. During his studies he won the numerous awards at the republic and state competitions. At the Faculty of Music he was awarded from the prof. Jakova Srejović Fund for the best final exam and awarded from the prof. Bruno Bruno Fund for the best master's exam. Aksin is laureate of the Competition for young artists in Zagreb in 1987. Since 1982, he is a member of the Opera Orchestra of the SNP as a bass trombonist, and in 1984 he took place of a solo trombone. He is also solo trombonist of Vojvodina Philharmonic and Novi Sad Serbian National Thetre orchestra. In the 1988/89 season worked as a solo trombonist of the Belgrade Philharmonic. As a soloist and as a member of various chamber ansembles (Duo trombone, Novi Sad brass quintet, Musica Viva, Tickmayer Formation), he held a series of concerts in the country and abroad and participated in festivals such as Nomus, Bemus, Tribune of Yugoslav creativity in Opatija, Zagreb BIENNIAL etc.
In 1989 starts cooperation with Theathre Jel from France who runs Jozef Nagy, and since 1991 has lived and worked in Orleans (France). With this ensemble has performed in France, Germany, the Netherlands, Belgium, Luxembourg, Switzerland, Italy, Portugal, Czech Republic, Slovakia, Hungary, Romania, Israel. In 1994 he returns to Novi Sad, where he was elected assistant professor of Trombone and Chamber Music at the Academy of Arts in Novi Sad. Since 1995 he is a member of the chamber orchestra Camerata Accademica and Novi Sad Brass Quintet. With these ensembles, then as a soloist and in various other ensembles perform at NOMUS, Bemus, the International Review of Composers in Belgrade, and in many concerts in Novi Sad, Belgrade, Subotica, Kanjiza, Senta, Vrsac, Podgorica, Budva, Budapest etc. In 1999 was elected an associate professor of the Academy of arts. In recent years he is cooperating with the ensemble Sonemus from Sarajevo, with whom he toured in 2002 in Sarajevo, Zadar, Zagreb, Belgrade, Podgorica and Skopje, and in September 2003 in Switzerland (Zurich-Winterthur). He is a member of Vojvodina Symphony Orchestra (trombone solo) and Opera Orchestra of the Serbian National Theatre (trombone solo). Since 2004 Aksin is a full time professor at the Academy of Arts in Novi Sad. His students won the highest awards at students competitions. In addition to the Academy of Arts in Novi Sad he teaches at the Academy of Art in Banja Luka, Bosnia and Herzegovina.