49. Stevie Wonder - Songs in the Key of Life

If Stevie Wonder had never released "Songs in the Key of Life," we'd still be talking about him as one of the greatest -- if not THE greatest -- musician the United States ever produced. But, thankfully, he did. Look at any "best albums of all time list," and this double-album masterpiece is guaranteed to be close to the top. And for good reason. Yes, it contains hits and standards that we all know ("Isn't She Lovely?" and "Sir Duke" come to mind), but even those are layered with intricate mixes; instrumentation; percussion; new, innovative (for the time) instruments; and engaging and introspective lyrics. More than 100 people contributed to the album, but this album is all Stevie Wonder. (He even plays all the instruments on some songs.) It's his magnum opus. And it's glorious.

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