The last song he wrote for Pink Floyd was impossible to play...

Syd Barrett - Have You Got It Yet?

...Barrett's mind couldn't handle the pressure, and often concerts were one of the critical points along with writing new pieces.

At concerts, in fact, Syd would play the same chord for whole minutes, break guitar strings, or go out of tune in front of the audience, making things difficult even for the rest of the Floyd, who called in their friend David Gilmour to help them...

...In January '68, when Pink Floyd was a quintet with Gilmour's arrival, Barrett wrote a new song titled “Have You Got It Yet?” referring to the notes and chords, but that was precisely the problem.

After presenting it to the band, Syd kept shuffling the deck, changing the structure of the melody and chords with each attempt. The only consistent element was Barrett's voice, which, cheerfully, continued to