SAXON heavy metal discography

According to The Metal Archives, the May 21, 1979 debut album by Saxon begins with the one-minute instrumetal intro "Rainbow Theme," After the intro, the song proper "Frozen Rainbow" begins. (Based on the version of the CD that I have, the two tracks are divided at different time marks, compared to what The Metal Archives shows.) Personally, I really like this bluesy, melodic song. It's different from the stereotype or image of early Saxon as an aggressive, angry heavy metal band.

SAXON - Rainbow Theme