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Ian Gillan: Singer
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Ian Paice: Drums
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Roger Glover: Bass guitar
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Steve Morse: Guitar
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Don Airey: Keyboards
- Bob Ezrin: Mixer, producer
- Justin Cortelyou: Mix engineer, tracking engineer
- Jason Elliott: Mix engineer
- Justin Francis: Mix engineer
- Julian Shank: Mix engineer
- Bryce Roberson: Assistant tracking engineer
- The Tracking Room (Nashville, TN, USA): Recording studio
- Alex Krotz: Vocal and additional recording engineer
- Jaime Sickora: Vocal and additional recording engineer
- Julian Shank: Vocal and additional recording engineer
- Zach Pepe: Assistant engineer for vocal session
- Noble Street Studios (Toronto, Canada): Vocal and additional recording studio
- Anarchy Studios (Nashville, TN, USA): Vocal and additional recording studio
- Henson Recording Studios (Los Angeles, CA, USA): Vocal and additional recording studio
- Eric Boulanger: Mastered
- The Bakery (Los Angeles, CA, USA): Mastering studio
- Ben Wolf: Band pictures
- Elena Saharova: Landscape picture
- Jekyll & Hyde: Cover artwork, graphic design
Tracks 1-6: Act 1
Tracks 7-12: Act 2