The band were forced to work to a tight deadline to ensure the album was completed in time for a pre-Christmas release. They were nevertheless in the unfamiliar position of being able to dedicate themselves solely to a recording project, without the interruption of any touring, filming or radio engagements. According to author Christopher Bray, this made "Rubber Soul" not just unusual in the Beatles' career but "emphatically unlike those LPs made by other bands". From 4 November, by which point only around half the required number of songs were near completion, the Beatles' sessions were routinely booked to finish at 3 am each day.