Dude, this is quite possibly my favorite album of the era. Gonna put it on right now.
Sunshine of Your Love
Every Breath You Take
Smells Like Teen Spirit
Those are the songs that don’t take me back to the 70s.
My own very limited contributions:
Shine On You Crazy Diamond (Pink Floyd)
Earache My Eye (Cheech and Chong)
I Don’t Mind (Uriah Heep)
Ain’t Nothin’ But a House Party (J. Geils Band)
Popcorn (Hot Butter)
Uncle Albert (Wings?)
Lucky Man (ELP)
If I recall, they are the words that were tattooed on Eddie’s hands in The Rocky Horror Picture Show. Eddie was played by Meat Loaf.
Man, how could anyone disparage the seventies? Just look at all the great songs that were out! 
I think 90% of disco and leisure suits overshadowed the good music.
Janis Joplin really belonged to the 60s, but Mercedes Benz was a 70s kind of song.
And Box of Rain takes me right back to princess phones, wire spool tables, frangipani oil and green refrigerators.
I like disco. Always have.
I came of age in the '70s and became a bona fide record collector then. With what I listened to back then, and what I’ve bought since, I have to estimate that 97% of my '70s music is not disco. I hated it then, I hate it now. It was possible to ignore it, with some effort.
I absolutely love the R&B, funk and soul music from the period, but when it became that endless “psssshhht psssshhht psssshhht psssshhht” drivel, geared to flailing cokeheads in polyester and spandex, it lost me. I don’t remember knowing anybody who liked disco music, or went to the disco clubs, or wore the disco uniform. I certainly didn’t. I do like certain songs from the disco period, because of the good songwriting and playing. But overall, as a genre, it didn’t affect me or the people I knew.
I’m always disappointed when I see shows like “I Love The Seventies” on VH1 and the twentysomethings from today seem to think that there was little else happening back then but disco. It wasn’t really that pervasive, was it? There was so much music that was more interesting than disco. I can’t understand how it’s disregarded now in favor of “memories” that didn’t really happen the way they are represented.
For me, the '70s were about rock and pop music also coming of age, and one song doesn’t encapsulate a whole decade for me. There are just too many good ones to list here!
I originally came in here to say “Smoke On The Water” by Deep Purple, but after thinking about it, it would be the entire Rumours album by Fleetwood Mac: especially the song “Dreams.”
OK. You win.