The UK edition of "Are You Experienced" opened with "Foxy Lady", a track that, with the exception of a few overdubs, was recorded in one session at CBS. Hendrix wrote the song about Heather Taylor, a London socialite who later married the Who's Roger Daltrey. It begins with the fade-in of an F note that Hendrix is bending-up to F while applying generous finger vibrato. Using his guitar's control knob, he slowly increases volume until an audio feedback loop develops and he slides into the song's dominant Fm7 chord. Hendrix used a combination of natural amplifier overdrive and fuzz box effects units to create the song's razor-sharp guitar tone. Its blues–inspired solo—his fourth since arriving in England—used pentatonic scales while showcasing his innovative approach to melody; by exploiting the increased sustain created by overdriving his amplifiers, he moved seamlessly between the middle and high registers with a fluid, singing tone. Author Peter Doggett compared its slow beat to Memphis soul; David Stubbs described the track as a prototype for heavy metal bands such as Black Sabbath.