One of the most prominent singer/songwriters of the 1970s, UK native Cat Stevens (now known as Yusuf) had many hits in the first half of that decade, releasing more than one album a year during a brief period. Just as his popularity started to wane a bit, Stevens released Numbers” … subtitled A Pythagorean Theory Tale … based on a fictional planet in a far-off galaxy named Polygor,” (from the liner notes).
“Numbers (1975) sits in a peculiar position in Cat’s back catalogue – the last real attempt at making something ‘new’ and different’ in his ‘first’ career, the last album started from scratch before his conversion to Islam and, most interestingly of all, the only real half-concept/story album in his back catalogue,” (AlansAlbumArchives). “Even when concept albums were all the range at Cat’s peak (1970-73) Cat never made an album like this one, based on one rounded theme (his songs almost always share the same theme but are separate discussions of each topic and sub-topic – he never again takes us on a half-hour journey somewhere like this again).”
After an intro in F# major, the verse tumbles into D major (0:16). At 2:25, an instrumental outro turns around a few times before landing us in B major.