and only official solo performance, at the Olympia in Kensington, backed once more by Gilmour and Shirley. At the end of "Octopus", the fourth number of the set, Barrett baffled the audience and his backing musicians by abruptly taking off his guitar and walking off stage. Recording The first session was on 26 February, three of the first songs—fully recorded—attempted during the session were "Baby Lemonade", "Maisie" and "Gigolo Aunt". However, Gilmour thought they were losing the "Barrett-ness". After "Baby Lemonade" was attempted, 2 takes of "Maisie" were recorded before Barrett went into 15 takes of "Gigolo Aunt". The next day, two-track demos of "Wolfpack", "Waving My Arms in the Air", "Living Alone" and "Bob Dylan Blues", were recorded. The former two made it to the album; the latter two didn't. On the recording sheet, it lists Gilmour as having taken home a copy of the latter two, Gilmour later returned and took the master tapes too. Gilmour has since said "Those sessions were done so quickly. We were rushing to gigs every day and had to fit recording sessions in between. I probably took it away to have a listen and simply forgot to take it back. It wasn't intended to be a final mix. Syd knocked it off, I took a tape home." Despite some minor work made to "Gigolo Aunt", Barrett wouldn't return to Abbey Road Studios until 1 April, due to Pink Floyd working on their 1970 album, Atom Heart Mother. On various occasions, Barrett would "spy" on the band as they recorded the album. Again, Barrett recorded some work to a song, "Wolfpack", on the 3rd, before the sessions were postponed until 5 June, this time due to Gilmour and Wright going on tour in the US with Pink Floyd. On the session of 5 June, Barrett managed to record an unknown number of two-track demos for three songs: "Rats", "Wined and Dined", and "Birdie Hop". The "Rats" demo recorded here, became the basis for the album master, and would later be overdubbed by musicians, despite the changing tempos. Two days later, on the 7th, Barrett recorded "Milky Way", "Millionaire", before being rounded off with overdubs for "Rats". "Millionaire" was originally titled "She Was a Millionaire", and was originally recorded by Pink Floyd. Barrett recorded two attempts at a backing track before abandoning it, and adding vocals. Yet another break in recording occurred, until 14