Wow an old album that rocked your world

First of all - the right question is so valuable.  And the responses from others has provided some future listening ideas.

The song I recently played as i was trying out a new amp was April Wine's 21st century schizoid man...It's a long jam and it brought me back to my teens listening to music and drinking in my parents basement.  Anyone remember Stroh's?

And then I just started picking songs from my digital library and ultimately listened to music for the several hours.

As for a classical album that I truly loved (and sounded amazing besides):
Leonard Bernstein- Rhapsody In Blue/American In Paris- Columbia- "360" LP. His phrasing on the piano is so moving. 

Spun Petty's "Wildflowers" for the first time in decades and it finally sunk its teeth into me as it should have done 25 years ago. One of his most accomplished works.

MC5, "Kick Out The Jams"

I listen to just about everything but One that stands out is
The Who
Live at Leads