Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Down to earth...rock solid!

Rumor has it that Ritchie asked Ian Gillan to handle vocal duties on this album,but he declined.With Graham Bonnet-powerful,bluesy vocalist-Rainbow began a new era,as Blackmore's musical taste shifted toward more straightforward territory.No compromises here;it's still a great Rainbow classic,revealing another of Blackmore's many musical facets.