Complex sentence: In 2005, Wall, along with G.A.N.G. founder and fellow composer Tommy Tallarico, produced the Video Games Live concert series, having served as the conductor for the international concert tour.
Split into simpler sentences: In 2005, Wall, along with G.A.N.G. founder and fellow composer Tommy Tallarico, produced the Video Games Live concert series. Wall serves as the conductor for the international concert tour.