Any *Prolific* Music Artists with a Near-Perfect Discography?
I can't think of any. As much as I love David Bowie, Prince, Marvin Gaye, Kate Bush, Talking Heads, The Clash, CHIC, Hall & Oates, The Jam, and The Police, for example, all of them have released at least a couple of stinkers or also-ran singles. Stevie Wonder had a good run until the mid-80s, when he came out with the terrible "I Just Called to Say I Love You." Honestly, and I'm ashamed to say this, but I think the musical artist who had the greatest run of gem-after-gem, at least until the mid-90s, when he descended into saccharine twaddle, is Michael Jackson (whatever else one may think of him).
Off the Wall, Thriller, Bad, and most of Dangerous, is filled with classic songs (although a large part of that is attributable to Quincy Jones, who also pretty much had a flawless midas touch throughout the 70s and 80s, although, save for a few singles, he's regarded more as a producer than a solo artist).