Deep Purple

Two-CD/Blu-ray set also features 'Stormbringer' demos, alternate track mixes, song-by-song commentary and more.

Guitarist arranges trio shows around his duties with cancer-battling wife.

"It's such a game-changing, life-changing thing," he reflects on his 1973 debut with legendary band.

Lars Ulrich explains why his band's songs "don't vary much from night to night."

"We had burned out," keyboardist Jon Lord admitted, but the band pressed on.

Track appears on band's upcoming 21st studio album, 'Whoosh!'