For me its the first or very early LP's of:
Allman Brothers - "Allman Joys" "Idyllwild South"
Santana - "Santana" 200 g reissue
Emerson Lake and Palmer - "Emerson Lake and Palmer"
and,
Beethoven - "Piano Concerto No. 4 in G Major" Rudolph Serkin/Ozawa/BSO