Ric Lipson: The studio [Stufish] has worked with U2 for many, many years, all the way back [to] the original “Zoo TV” [tour]. And obviously this is the 30 year anniversary of “Zoo TV.” ...

U2’s Zoo TV - Live in Dublin debuts inside the top 10 on three charts in the U.K. as fans in the nation flocked to buy the latest from the Irish rockers. (Photo by Lester Cohen/Getty Images ...

Somewhat incredibly, the musician was entirely self taught until deep into U2's career. In 1995, after the band's Zoo TV Tour, he received his first formal training with the instrument.