Lyrics insights

A friend had a quiz on his blog about numbers in song lyrics – naturally I participated (answers here). One question, about Bryan Adams’ song “Summer Of ’69”, made me conduct a search. I remember a story that the title was supposed to be “Summer of ’73”, but it didn’t scan. I looked, but I couldn’t find corroboration. Instead, I found the site of cowriter Jim Vallance, who has information and comments about songs he’s written. He’s most known for songs written with Aerosmith and Bryan Adams, but he’s also written for Ozzy Osbourne, Heart, Alice Cooper and Glass Tiger (yes, their big hit).