Complex sentence: At the Ace label, he then recorded "Something Special", which was written and produced by Rebennack, and arranged by Allen Toussaint, and "Just A Moment", which became a regional hit and sold an estimated 100,000 copies.
Split into simpler sentences: At the Ace label, he then recorded "Something Special", which was written and produced by Rebennack, and arranged by Allen Toussaint. Another was "Just A Moment", which became a regional hit and sold an estimated 100,000 copies.