From 12 January till the 20th, Pink Floyd performed briefly as a five-piece. Gilmour played and sang while Barrett wandered around on stage, occasionally joining in with the playing. In between these gigs, the group rehearsed new songs written by Waters on 15 and 16 January. During the next session, on 18 January, the band jammed on rhythm tracks, joined by Smith; Barrett did not attend. On 24 and 25 January, they recorded a song, logged as "The Most Boring Song I've Ever Heard Bar 2" at Abbey Road. The band recorded "Let There Be More Light", "Corporal Clegg" (which features lead vocals by Mason) and "See-Saw" all without Barrett, though manager Andrew King claimed Barrett performed the slide solo at the end of "Let There Be More Light".