This thread should have been started by someone who only knows three works.
My three, and this isn't easy:
Mozart's Great Mass - Schubert's piano sonata D 959 - Bach's Mass in B
Minor.
That just leaves many hundreds of masterpieces I can't do without.
Another list member suggested "bodies" of works. My three are:
Mozart Piano Concertos - Bach cantatas - Beethoven piano sonatas.
Don Satz
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