Complex sentence: In 1969, after Robin quit the group, they recorded the songs for their seventh album "Cucumber Castle", all of the songs sung by Barry, except the song "My Thing" (the song was performed by Maurice Gibb).
Split into simpler sentences: In 1969, after Robin quit the group, they recorded the songs for their seventh album "Cucumber Castle". All of the songs were sung by Barry, except the song "My Thing" (the song was performed by Maurice Gibb).