Watch the Sweepin' & Slidin' online guitar lesson by Tony Smotherman from Essentials: Power Ballad Soloing
"Sweepin' & Slidin'" is another classical style ballad. The chords are Amin - Cadd4 - Bdim7 - E7.
Having the diminished chord in this progression can opening up some great harmonic possibilities that will allow us to really expand out while still keeping things musically simple. There are plenty of target notes to hit, and lots of bending, especially in the higher register.