Metallica's S&M album may be intuitively good for DS for a few reasons.
A) Metallica alone is sufficiently enjoyable as they set the standard for heavy metal throughout the decades and have some amazingly memorable guitar riffs and lyrics.
B) The San Francisco Symphony Orchestra alone is sufficiently enjoyable as they are an extremely tight and well regarded outfit.
C) Both musical monsters together in concert are abnormally sufficient and create a synergy that is greater than the sum of their individual efforts (neither alone are as sufficient in this regard!)
D) Obviously, each are sufficient alone.
E) Statements 1 and 2 together are not sufficient for people who do not appreciate the finer points of obscure musical amalgamations whilst studying for standardised exams.
No leaf clover is especially good! Q51 good!
Rule #76: No excuses. Play like a champion!