Sullivan on Dave Berry's UK chart hits "The Crying Game" and "One Heart Between Two". Harrison's adoption of the pedal typified his search for new sounds for the Beatles, and for colouring that was empathetic with the group's material. He played the part on his Rickenbacker 12-string electric guitar and soon used the effect again on "Yes It Is", a similarly emotive Lennon composition. Musicologist Walter Everett recognises the volume pedal's presence on "I Need You" as the most important example within the band's work, with every chord given the "flautando-like" sound, and "multiple articulations" appearing throughout the song's coda. Citing a comment later made by Harrison, Everett says that "I Need You" was possibly one of the tracks where the pedal control was operated by Lennon, kneeling down on the studio floor, while Harrison played the guitar part. In the 2006 book Recording the Beatles, the authors highlight the song as an example of the "warm, full sound" that EMI's Telefunken M10 four-track recorder was able to capture. Journalist Kit O'Toole recognises the song's lead guitar effect and other folk rock qualities as having been influential on the Byrds, whose sound in turn would influence the Beatles. Film sequence The film sequence for "I Need You" was shot over 3–5 May and consists of the band miming to the track on Salisbury Plain in Wiltshire. Since the start of filming for Help!, events had taken place that distanced the Beatles, particularly Harrison and Lennon, from the public image they were expected to uphold in the feature film, and were exerting a profound influence on the band's thinking. Among these incidents, Harrison was introduced to Indian philosophy in the Bahamas when a local swami gave each of the Beatles a copy of The Complete Illustrated Book of Yoga; he and Lennon, together with Boyd and Lennon's wife Cynthia, had their first experience with the hallucinogenic drug LSD, in late March; and Harrison encountered an Indian sitar for the first time while filming a restaurant scene in London in April. In Tillery's description, 1965 was the most "pivotal" year in Harrison's life, as LSD opened the door to his enduring quest for spiritual enlightenment and Eastern philosophy provided a means to escape the demands of Beatlemania. The "I Need You" sequence depicts an outdoor recording session, with a makeshift control booth and microphones set up in an open field. Further to