Complex sentence: Bajaga i Instruktori were formed in 1984 by Momčilo Bajagić, the guitarist of the highly popular hard rock band Riblja Čorba from 1978 to 1984.
Split into simpler sentences: Bajaga i Instruktori were formed in 1984 by Momčilo Bajagić. Bajagić was the guitarist of the highly popular hard rock band Riblja Čorba from 1978 to 1984.