[Dr. Sivana]

Early 60s, meh, but 64 onwards, absolutely. Music styles literally changed by the month.

Music styles changed, but a lot of the psychodelic stuff was garbage. Just like a lot of people who had no business doing disco did disco (e.g. Elton John), a lot of name acts that had no business doing that introspective psychedelic stuff did it (e.g. Gary Lewis).

The Doors knew how to incorporate organs, but almost nobody else did. Nonetheless, we got organs. The only rubbish the Beatles made was during this period (e.g. Revolution #9, Tomorrow Never Knows, 1/4 of "The Beatles" (White Album).

Someone has to give a shout out to the early '70s Soul Music, and its lush orchestral arrangements (Barry White, Earth Wind and Fire, etc.)

Lyric writing went way down hill in the '60s when 25 year old drug heads took over from professionals.

Melody, Harmony, Rhythm. Do those, and you have music.

[T.B. Yoits]

The Doors knew how to incorporate organs, but almost nobody else did. Nonetheless, we got organs.

In no particular order:

John Paul Jones (Led Zeppelin)
Jon Lord (Deep Purple)
Alan Price (The Animals)
Matthew Fisher (Procul Harum)
Steve Winwood
Ron Argent
Rick Wakeman (Yes)
Keith Emerson
Greg Allman
Booker T. Jones