Pie". Harrison continued to develop as a songwriter, yet he received little support from within the band during the sessions. Feeling resentment from Lennon and McCartney for his role in leading the Beatles to the Maharishi, Harrison's composition "Not Guilty" reflected his state of mind after their return from India. Ringo Starr became increasingly dissatisfied with the standard of his drumming. According to author Mark Hertsgaard, this was "a feeling that [McCartney] in particular had done much to encourage". Distressed also by the sour and tense atmosphere that was characteristic of the recording sessions, Starr felt so isolated that he left the band for several weeks and holidayed with his family in Sardinia. He returned in early September to find his drum kit decorated with flowers, which were a gift from Harrison. With the release of The Beatles in November, the band no longer gave collective interviews or recorded appearances, and public relations were carried out individually. Other evidence of the group's collective alienation came with the release of their 1968 Christmas fan club recording; the contributions were entirely individual and Lennon made disparaging remarks about his bandmates' apparent disdain for Ono. By the end of 1968, the Beatles' status as a group entity was in limbo. McCartney suggested a group project involving rehearsing, recording and then performing a set of songs for a live concert. The project soon adopted a working title of Get Back. Although the sessions for their double album had involved a degree of ensemble playing, the band were ill-prepared to settle comfortably back into this mode; in particular, Lennon had descended into heroin addiction, leaving him variously incommunicative or highly critical of the venture. On 10 January 1969, eight days after filmed rehearsals commenced at Twickenham Film Studios, Harrison's frustration and resentment peaked and he informed his bandmates that he was leaving. Having enjoyed rewarding collaborations outside the Beatles during much of 1968, particularly with Eric Clapton, Bob Dylan and the Band, Harrison began to feel stifled by the combined patronising by McCartney and estrangement from Lennon. The band were at an impasse and on the verge of collapse. Ultimately, complicated negotiations brought Harrison back into the group's activities. At his insistence, McCartney's plans for a full concert were abandoned and the project was relocated to the band's Apple Studio in Savile Row, with the focus now on merely completing a new album of some