Complex sentence: The "Ringo" of the band was Čedormir Mačura, the drummer of Bajaga & Instruktori, who also did lead vocals on the track "When I Come To Town", an imaginary track with Ringo on vocals.
Split into simpler sentences: The "Ringo" of the band was Čedormir Mačura, the drummer of Bajaga & Instruktori. He also sang lead vocals on the track "When I Come To Town" which was an imaginary track with Ringo on vocals.