Equal parts Charles Ives and Keith Jarrett, jazz pianist Matthew Shipp’s 4D blurs the lines between 20th-century forward-thinking styles, offering up melodies and directions that make the term “free jazz” seem almost inadequate (“4D,” “Dark Matter”). These songs explore how sound and space interact: Passages move adventurously and often without a discernible meter or key (“Stairs,” “What Is This Thing Called Love”), instead letting their own sound guide their movement; even well-known standards like “Autumn Leaves” are set free from their typical forms here.