Well it hasn't exactly been the same soundtrack each time. These are all parts of the Hissatsu soundtrack anthology, covering multiple series in the franchise from the early '70s through the '80s. It's taken me a few years to get all sixteen volumes, and I decided that now that I've got them all it was time to listen to them in order.
This is one of my favorite discs in the Hissatsu anthology. A lot of it plays like a Spaghetti Western with some Japanese flavoring thrown in. It also features a lot more variations on the main theme song than some of the previous volumes, which is a definite plus since I think all the songs Masaaki Hirao wrote for these shows are great.
I probably won't post the covers for any of the volumes I listen to after this, since they're all of a similar template and I doubt anyone else finds the subtle differences between the covers as interesting as I do, but man do I love these scores!