Watch the Mrs. Crowe's Blue Waltz online guitar lesson by Adrian Legg from Fingerstyle Revisionist: Adagio Songbook
This tune is "Mrs. Crowe's Blue Waltz", the title track to an album I did. It's not a waltz - it started out with a definite emotional concept, and became something very different. It's in drop C, with your thumb marking the low C in the bass. We're looking for a sort of "grace" in this piece, creating space and using drop bends to make the notes "cry".
There isn't anything too terribly difficult with it, however there are a couple of fingerings that I've found a bit awkward here.