Steve DiGiorgio (Testament), Jeroen Paul Thesseling (ex-Obscura, etc.), and Yuma Van Eekelen (Our Oceans, etc.) have joined forces in a new band called Quadvium. DiGiorgio and Thesseling commented: “About ten years ago, we already had the idea in mind to form a group together. Using two fretless basses in one production is a different concept;…