Complex sentence: The band toured on and off until 1998, including a headline slot at a jazz festival in Budapest, covering various artists and bands such as B.B. King, Steppenwolf, Otis Redding, as well as Guns N'Roses and Slash's Snakepit material.
Split into simpler sentences: The band toured on and off until 1998, which included a headline slot at a jazz festival in Budapest. They covered various artists and bands such as B.B. King, Steppenwolf, Otis Redding, as well as Guns N'Roses and Slash's Snakepit material.