This is one I bought in 1975. Sammy Hagar had left and new member Bob James took over the vocals. They also added a keyboard player. It’s another good album that I played a lot back then. Both sides are equally good with a couple of covers,Eddie Cochran’s “Twenty Flight Rock”,and “O Lucky Man” from the movie of he same name. “Whaler” is a more mellow song but there are plenty of Rockers like “Matriarch”,”Black Train”,and “All I Need”.