Watch the You'll Be Sorry online guitar lesson by Jeff McErlain from Blues Guitar Fakebook: Rhythm Vol. 2
Here are some of my favorite blues changes, an 8 bar blues with a bridge. They're the same changes as the Freddie King classic "Someday After a While You'll Be Sorry". Many people have covered the song, including the version I first heard by John Mayall and the Bluesbreakers on the Hard Road record with the great Peter Green on guitar. These changes are not just specific to that tune, but many others as well.