I don't know "Walk Tall" but "Pieces of Change" is otherwise known as "Chainsaw" and was recorded in the studio for Together Alone. Only a guide vocal and no overdubs but a rockin' track. It was slated for the bonus disc until the last moment as Neil didn't think it was up to scratch.
REALLY surprised you haven't come across "Walk Tall"! Another of those live tracks with Neil calling out chords to the band! And almost as catchy as Frank's Dark Past to me.
And I know you've promised to add some of these that didn't make the cut to the Kitchen Sink, and I don't want to rush you. Just don't want it to slip off the radar, either.