Complex sentence: He formed Nomadiks and also worked with Addis rockers, which continued under the leadership of Keith the Bass with Dino Ferrari (a long time roadie with the band) and a variety of drummers.
Split into simpler sentences: He formed Nomadiks and also worked with Addis rockers. Here and Now continued under the leadership of Keith the Bass with Dino Ferrari (a long time roadie with the band) and a variety of drummers.