guitar capo midway along the instrument's neck introduced a brighter tone to the group's guitar sound. Their use of three-part harmonies on the song was also typical of the warmer, more mature sound they achieved on Rubber Soul. The Beatles taped the rhythm track of "If I Needed Someone" at EMI Studios in London, in a single take, on 16 October 1965. The recording took place just before midnight at the end of a session dedicated to their next single, "Day Tripper". Harrison played his new, 1965 Rickenbacker 360/12 on the song. According to musicologist Walter Everett, the sound of Harrison's chiming guitar, combined with that of Lennon's Fender Stratocaster rhythm part, produced "the Beatles' brightest guitar sound yet", and so served as "a fitting tribute to the Byrds". Using his new Rickenbacker 4001S bass, McCartney inaugurated an ostinato-heavy style that would feature prominently on the band's 1966 recordings, particularly the song "Rain". The group carried out their vocal overdubs during the afternoon of 18 October. Over the instrumental break and the outro, the harmonies consist of McCartney singing a third above and Lennon a tenth below Harrison's double-tracked lead vocal. During the same session, Ringo Starr added a tambourine part. Although some Beatles authors credit Martin as having played harmonium, Fontenot says this contribution is inaudible on the completed track. Jackson writes that the sound on "If I Needed Someone" was "so transcendent", in its combination of elements from the two Byrds songs and the Beatles' "soaring harmonies" and treble-rich guitar parts, that Lennon chose to use it for his Rubber Soul track "Nowhere Man". A mono mix of the song was made on 25 October, and a stereo mix on 26 October – the day the Beatles collected their MBEs from Buckingham Palace. Release and reception EMI's Parlophone label released Rubber Soul on 3 December 1965, with "If I Needed Someone" sequenced as the penultimate track. In the United States – where Capitol Records typically altered the content of the Beatles' albums, reducing the number of songs and using single A- and B-sides to create further album releases – the track instead appeared on the North American album Yesterday and Today in June 1966. The song was widely considered to be Harrison's best composition to date; according to music critic Richie Unterberger, "If I Needed Someone" and "Think for Yourself", which also appeared on the UK version of