The one hundred fifty-fifth album: #155 Led Zeppelin - Led Zeppelin
As I've mentioned several times before, this is the time period where rock starts to evolve. With the Beatles' influence waining, we see other bands step up and create their own sound. The Rolling Stones were still around and it feels like they influenced Led Zeppelin more than anything, with a hard rock soudn that draws heavily on blues as well. There are more eclectic touches, and Black Mountain Side feels quick different, but there's a unifying sound that ties the album together, while still keeping the songs distinguishable. It's a good, solid rock album, living up to what it wants to be without unnecessary flourishes or additions.