Half in California – half in the Netherlands, QUADVIUM is an instrumental progressive metal-fusion quartet that was founded by American bass player Steve Di Giorgio (TESTAMENT, DEATH) and Dutch bass player Jeroen Paul Thesseling (former OBSCURA, PESTILENCE) both innovators in bringing a different style of fretless playing to metal. Launching a band with two predominantly multi-string fretless bass players is no common occurrence, and the bass-duo felt they needed to take very special and deliberate time to get the right alignment with who is participating and what will be the end result - meaning the right sound and composition to represent this rare vision.

Over time, together with Dutch master drummer Yuma van Eekelen (OUR OCEANS, former PESTILENCE) and American guitar virtuoso/ composer Eve (MYTH OF I, KAATHE) – whose contribution and expertise play a huge part of QUADVIUM – the music began to take shape. The line-up is just the right blend to mix the delicate balance of such a heavy aural offering and a full vocabulary of high level constructed pieces. QUADVIUM finished their highly anticipated recordings and released the first music video 'NÁSTRÖND' taken from the upcoming debut album 'TETRADŌM', set to be released on May 30th via Agonia Records.

“We’re stoked to reveal Quadvium’s first single «Náströnd». We hope you’ll enjoy listening, and watching the video for the song. Thank you all for your patience. It has been quite a long trip building our concept and striving together for the best ideas. And now here we are – the first glimpse into an album that is quite a musical adventure! It’s very important and means a lot for us to bring new music for an open-minded audience. We’re very excited to invite you in to our musical creation, and really enjoy reading your reactions! The team at Agonia Records has been a huge support for the group to accomplish this production. Stay tuned, more to be announced soon!”