Zorn played guitar, mandolin, saxophone and flute, among other instruments. He began working with Thompson in the 1980s, while other activities included stints with the Albion Band, Gerry Rafferty and more.

He joined Steeleye Span in 2009 as temporary replacement for Rick Kemp, but remained when the bassist returned, and eventually spent six years with them.

His family said in a brief statement last night: "We are devastated to have to share this, but Dad passed away in his sleep in the early hours of this morning. We are heartbroken."