Complex sentence: Duke Erikson said that "no one was agreeing on the direction of the music", and thus the band was on the verge of breaking up as "when you lose that common bond of the music, you've got nothing".
Split into simpler sentences: Duke Erikson said that nobody could agree about the music's direction, and he band was on the verge of breaking up. He said, "when you lose that common bond of the music, you've got nothing".