“We didn’t know where that song was going until one afternoon when we went to record the melody and I plugged a wah-wah pedal and a Tubedriver into my 100-watt Marshall,” says Joe Satriani. “Then, just on a whim, I said, ‘Let’s try this harmonizer.’ It was one of those Eventide 949s. The sound that came out of the speakers blew us away so much that we recorded the melody and the solo in about a half-hour and sat back and went, ‘Whoa! This is a song, man!’
“We were stuck in Switzerland with nowhere to go, and a friend of ours who was the mayor of the town said that there was an empty hotel we could use,” recalls Ritchie Blackmore. “We gladly accepted and retreated to this lonely hotel in the mountains. We set up all the equipment in the corridor, with the drums and some amps tucked into alcoves."