psychedelic rock, progressive rock, pop rock and hard rock, the latter mostly evident in Blackmore's guitar parts. Traces of the heavy sound that would mark the production of Deep Purple's "Mk. II" line-up (when Evans and Simper were replaced by Gillan and Roger Glover) can already be heard in the opening instrumental "And the Address" and in "Mandrake Root". The main riff of the latter is very similar to the one in the song "Foxy Lady", a testimony of Blackmore's admiration for Jimi Hendrix. The other original compositions, the ballad "One More Rainy Day" and "Love Help Me", are pop rock songs that enhance the commercial appeal of the album, but are considered by critics less interesting than the cover songs. The use of so many cover songs to fill up the album was a common feature at the time, because of the short time given to bands for songwriting and for the rushed schedules of production. The songs covered in the album were all treated with new arrangements to be considerably longer and sound more grandiose than the originals, in an attempt to emulate the American rock band Vanilla Fudge, which many Deep Purple members admired. "Hush" and "Help!" are clear examples of the "Vanilla Fudge style of slowing a song down and bluesing it up" to get a more psychedelic sound. The sound of the band was also heavily influenced by classical music: "I'm So Glad" is introduced by "Prelude: Happiness", featuring an electric arrangement inspired by the first movement of Nikolai Rimsky-Korsakov's symphonic suite Scheherazade; the cover of "Hey Joe" was arranged inserting parts taken from the Miller's Dance, suite no. 2, part 2 of El sombrero de tres picos ballet by Manuel de Falla, on a rhythm reminiscent of the Boléro by Maurice Ravel. Touring Deep Purple's live shows were from the start very loud and hard rocking and their stage set included stacks of custom purple vinyl Marshall amps and fancy dresses. The dualism between Blackmore's flamboyant guitar playing, which he had honed in many years of daily practice and experimented on tour with Sutch, and Lord's rocking Hammond solos was still in an embryonic stage, but it would soon become an integral part of the band's dynamics. Deep Purple debuted at The Roundhouse Theatre in London on 6 July 1968, opening for The Byrds, before The Gun and The Deviants. Their performance was badly