master take for "No Man's Land"; the bass, however, was re-recorded at a later date. Playing along with Barrett wasn't easy, according to Jones: "It was a case of following him, not playing with him. They were seeing and then playing so they were always a note behind ..." Shirley said of Barrett: "He gave the impression he knew something you didn't. He had this music sort of giggle ..." Next, they recorded a song that Barrett had written in a few minutes, "Here I Go", which required no overdubs at all. This session for "No Man's Land" and "Here I Go" lasted just three hours. When asked if he had any new songs for the following week's session, on 23 April, Barrett replied that he had "a weird idea I want to try out" and that other musicians would not be required. Afterwards, Barrett mentioned that he was interested in revisiting one of the Jenner tracks − "Rhamadam". On the morning of the 23rd, Barrett arrived at the studio with a cassette player, on which he had recorded motorbike sounds; these, he told Jones, were "all ready to [be] put onto the 'Rhamadam' four track". The producer described the sound quality as "terrible", an opinion that was confirmed once Barrett's player had been hooked up to a 4-track machine. Instead it was decided that Barrett should source the motorbike sounds from EMI's large sound effects library. The selection process took up to an hour, at which point Jones started to lose faith in Barrett. Later on, Barrett changed his mind and abandoned the idea. The session on 25 April was almost cancelled, due to Jones becoming ill from colitis. Beforehand, it had been agreed that this session would be dedicated to transferring their previously recorded, 4-track recordings onto Studio 3's newer 8-track machine, for further overdubs in later sessions. At Jones' suggestion, and despite warnings the producer had received that Barrett should not be in the studio unaccompanied, Barrett went in on his own to carry out the mixing. It had been decided that nearly all of the tracks that were recorded up to that point needed further overdubbing except for "No Man's Land" and "Here I Go". At this point, Barrett considered placing "Opel" on the album, Jones calls it among Barrett's "best and most haunting" songs. On the session for 3 May, three tracks on the album