I got in a rhythm finally with ripping apart that denim shirt. There are as many of four rows of stitching for one seam! I only have a couple more seams to go and it will finally be in pieces.
Meanwhile, I was thinking two shirts would not be enough fabric for the sashing for the R.E.M. quilt so I dug around and found two more denim shirts. They are lighter in color which I think will add more interest. More ripping to come!