After a three-week break from recording while they played gigs in England, including a December 29 appearance on "Top of the Pops", the Experience reconvened at De Lane Lea on January 11, 1967. As "Hey Joe" was gaining chart momentum in the UK, they began working on their second single, which featured Hendrix's second songwriting effort, "Purple Haze", as its A-side. The track presented a more complex arrangement than the band's previous recordings, and required four hours of studio time to complete, which Chandler considered extravagant. The session was the first time that he and the group had experimented with guitar effects. Acoustic engineer Roger Mayer introduced Hendrix to the Octavia, an octave-doubling effect pedal, in December 1966, and he first recorded with the effect during the guitar solo of "Purple Haze". When Track Records sent the master tapes for "Purple Haze" to Reprise for remastering, they wrote on the tape box: "Deliberate distortion. Do not correct."