When DP released In Rock there was such a rush of energy, a pure adrenaline flow, in the recordings it was no surprise to learn that the band had changed two members and were eager to explore new ideas. Over the next three studio albums that sound and energy would culminate in Machine Head and trickle over to Who Do We Think We Are. But by then tensions between members and a general feeling of creative stagnation were giving everyone the impression that a change was needed. Two band members out and two new members in, once again DP have changed their approach, their sound, their style, and sound like everyone just got a shot of jumpy juice. The album rocks with rejuevination. The old members (Blackmore, Lord and Paice) contribute with heightened enthusiasm and the new members (Coverdale and Hughes) are phenomenal, giving DP a more funky, bluesy feel. Sail Away is an awesome cross between hard rock and funk. Burn practically burns the speakers. Lay Down Stay Down and Might Just Take Your Life are among the best tracks with Coverdale and Hughes. Blackmore gets credit for soul on Mistreated and Coverdale introduces his breathy bedroom inhales and sighs before and after belting out the words. Paice is charged to the max with creativity on Burn and You Fool No One. Blackmore sounds enthused throughout the album. The combination of Coverdale’s and Hughes’s vocals is amazing. Lord still contributes with classic-inspired solos. This is one brilliant album!