Classical music has certainly been known to provide the inspiration for pop hits. The three biggest adaptations/incorporations of classics in the 70s were the #1 “A Fifth of Beethoven” in the summer/fall of 76, by Walter Murphy and the Big Apple Band, and two songs that peaked at #2: Deodato’s take on Richard Strauss’s “Also Sprach Zarathustra” in spring 73 and Eric Carmen’s “All by Myself” (Rachmaninoff’s Piano Concerto #2) three years later (Carmen also took the line from Rachmaninoff’s Symphony #2, third movement, for his follow-up, “Never Gonna Fall in Love Again”).
Another song with such a provenance is this week’s #15 tune (it’d get to #6). Apollo 100 was essentially a British studio creation. I first remember hearing this peppy, happy adaptation of Bach’s “Jesu, Joy of Man’s Desiring” in early 2005, after I bought a used copy of a CD of 70s instrumental hits (it also contains the Walter Murphy and the Deodato). It’s certainly possible it had been on the radio within earshot around the time I was turning 8, though. No pun intended, but it’s a joy; the fade-in is a nice effect.