Syd Barrett only performed alone.
Syd Barrett . Barrett began his solo career in 1969 with the single `` Octopus '' from his first solo album , The Madcap Laughs ( 1970 ) . The Madcap Laughs is the debut solo album by the English singer-songwriter Syd Barrett . Among the guest musicians are Willie Wilson from ( Gilmour 's old band ) Jokers Wild and Robert Wyatt of the band Soft Machine .