"What if songs from the 90s and 2000s were made in the 70s?"
Well, here is a possible answer.
Ichiro Kageyama is a fan of anison and notable guy from NicoNicoDouga, whose voice has quite a resemblance to Ichiro Mizuki (arguably the most legendary singer in anime ever), and one day he made an album consisting of songs such as this. Enjoy.
DISCLAIMER: I DO NOT OWN ANYTHING IN THIS VIDEO. "NEON GENESIS EVANGELION" IS A PROPERTY OF THEIR RESPECTIVE OWNERS.