Complex sentence: Balkan was formed in 1982 in Novi Sad by guitarist and vocalist Aleksandar Cvetković, a former Leki frontman, and initially performed as an opening band on Divlje Jagode, Riblja Čorba, Parni Valjak, Drugi Način, Galija and Atomsko Sklonište concerts in Vojvodina.
Split into simpler sentences: Balkan was formed in 1982 in Novi Sad by the guitarist and vocalist Aleksandar Cvetković, a former Leki frontman. Initially, Balkan performed as an opening band on Divlje Jagode, Riblja Čorba, Parni Valjak, Drugi Način, Galija and Atomsko Sklonište concerts in Vojvodina.