2012 Exemplary mentor in the positive development of junior colleagues in the profession by The Quality of Life Research Center, Claremont Graduate University
What would eventually become Zabranjeno Pušenje was started in 1979 by Nenad Janković and Davor Sučić, two teenage friends and neighbors who lived in the same apartment building on the Fuad Midžić Street in the Sarajevo neighborhood of Koševo. Two of them expanded their setup by adding Gajić, who was also a neighborhood teenage friend who possessed some basic musical knowledge having attended a music school. Though, by Janković's own admission, Gajić played the piano better than him,[6] Gajić decided to switch over to flute as an homage to his favorite band Jethro Tull. He managed to become comfortable on a new instrument fairly quickly, soon becoming a bit of a musical authority among this now three-piece.[7] Gajić performed with Zabranjeno Pušenje around Sarajevo for two years before beginning to record material for a debut album during fall 1983. The shambolic recording process took seven months before the album named Das ist Walter got released by Jugoton in April 1984[8] in the small print of 3,000 copies, clearly indicative of the label's extremely low commercial expectations. Though the album was initially released in the small print, the final count was 100,000 copies sold, setting a record for exceeding the initial release by 30 times. In Autumn 1984, they embarked on a 60-concert nationwide concert tour, making them one of the biggest Yugoslav rock attractions after just one album.[9] In the mid-1980s Gajić worked on two more album. The second studio album Dok čekaš sabah sa šejtanom (English: While you're awaiting dawn with the devil) is released through Jugoton on June 11, 1985, and the third Pozdrav iz zemlje Safari (transl. Greetings from the land of Safari) is released through his hometown based record label Diskoton in 1987. He left the band in 1987.