Sigma 6

Sigma 6 was a rhythm and blues band formed in 1964 by Roger Waters while he was studying architecture at a college in London.In 1965 Syd Barrett, Roger Waters, Nick Mason and Richard Wright formed the popular progressive rock band Pink Floyd.

Members

* Juliette Gale - vocals, flute
* Keith Noble - vocals,
* Roger Waters - backing vocals, lead guitar
* Richard Wright - backing vocals, rhythm guitar
* Nick Mason - Drums, percussion
* Clive Metcalfe - bass guitar

The band went through a number of name changes including The Abdabs, The Architectural Abdabs (due to the fact Waters and Mason met on an architecture degree) and The Screaming Abdabs but were unable to keep band members and the group broke up in 1965 when Metcalfe and Noble left the band to write singles for Chad and Jeremy including "A Summer Song". Keith Noble now works as a drama teacher at Brantwood School, Sheffield. Two new members joined the band to augment these leaving members:

* Bob Klose - guitars
* Chris Dennis - vocals

Klose, a classmate of Syd Barrett and David Gilmour from Cambridge, was brought in to replace Metcalfe and, as a consequence, Waters switched to bass. Chris Dennis, who was the new lead vocalist was soon replaced by Barrett. Shortly after, Waters, Wright, Mason, Barrett and Klose, formed the Tea Set, which soon became The Pink Floyd Sound and later, simply Pink Floyd. It was soon after when what was the earliest incarnation of Pink Floyd made their first recordings. In late 1964, the band recorded four songs on a demo: "Lucy Leave", "King Bee", "Double O Bo", and "Butterfly".

In the following months it became clear that Klose's jazz-influenced style was not compatible with Barrett's more improvisational free-form style, and Bob Klose left the band in the summer of 1965.

The Screaming Abdabs

The Screaming Abdabs was also the nom de plume used by Pink Floyd on unofficially sanctioned live bootleg recordings which were recorded directly through the mixing desk in concerts, including:

* "Brain Damage (Dark side of the moon)" (1972 - Hammersmith)

Note: The Screamin' Ab Dabs was also the name of a late 1970s rhythm and blues band fronted by Alison Moyet.