Flied Egg - "Goodbye" 1972

Flied Egg was a Japanese trio. Their farewell album "Goodbye" reveals, although not the most stylistically focused band you've heard, but three guys having a lot of fun at what they're doing.
The first side is recorded live and in style of guitar driven hard rock. It is rather simplistic, but definitely hard and energetic. The studio side is a bit more sophisticated and progressive. Especially the excellent energetic and complex instrumental, "521 Second Schizophrenic Symphony", that includes some sophisticated organ and piano. If you can find it, "Goodbye" is well worth a listen if you're into 70's Hard Rock with some prog parts thrown in here and there.