Interview With Quadvium Bassists Jeroen Thesseling and Steve Di Giorgio

Have you ever wondered what a Progressive Rock/fusion band with two bassists would sound like? Well, wonder no more… the answer is Quadvium! And they’re making waves with their brand-new album, “Tetradom.”

Quadvium brings together an incredible lineup: Jeroen Thesseling and Steve Di Giorgio on bass, the powerhouse Yuma Van Ecklen on drums, and the electrifying Eve Smith on guitar. The result? Music that’s as intricate as it is powerful, as melodic as it is rhythmic, and as bold as it is beautiful.

In today’s conversation, we get to hear from the masters themselves, as they share the story of how Quadvium came together, what inspired their unique dual-bass approach, and all the fascinating details behind “Tetradom.” From musical influences to studio stories, you’re going to get the inside scoop on what makes this band so extraordinary.

So, grab your headphones and get ready to dive deep into the world of Quadvium. Without further ado, here are Jeroen Thesseling and Steve Di Giorgio!

This interview first appeared in Bass Musician Magazine in Nov 2025

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