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Definition of magnum opus

: a great work especially : the greatest achievement of an artist or writer, masterpiece.

You probably recognize magnum ("great") as a Latin word that shows up in altered forms in several English words, and perhaps you can also come up with a few that are related to opus ("work"). Magnitude, magnanimous, opulent, and operate are some obvious relations of the two. Magnum opus, which entered English in the late 18th century, retains the original Latin spelling and the literal meaning "great work." Although the term most often refers to literary productions, it has been used to describe many kinds of great works, including paintings, movies, construction projects, and even surgical techniques.

https://www.merriam-webster.com/dict...pus#learn-more

OKAY..we have a thread about Artists/Groups you cant stand , lets have one about the magnum opus of Artists/Groups that enrich our audio experience.

Feel free to disagree, let's stay civil. Prefer to keep replies to material that is actually available. (ie: NOT some Ethiopian sheep herders masterpiece that's only available "live" on a mountaintop.)

In our other thread, a wiki post called Peter Green's "Oh Well" his magnum opus.
One of my faves , The Temptations "Papa was a Rolling Stone" (12:05 version) was noted as theirs.
Santana ?? To me, it would be "Black Magic woman" (also a Peter Green composition)
Beach Boys ?? Good Vibrations ???
LVB's 9/4

You get the idea , what are your nominations