Alright, this one is another melody you’ve definitely heard before, whether you think you have or not. Francis Lai’s theme song to the film Love Story actually opens with two notes ascending a minor sixth, but if you skip ahead to 0:24, just after a short horn fanfare, those two notes reverse briefly before entering the meat of the run. Either way you play those two notes back, it’s a minor sixth interval, but train your ears to hear it as a descending melody to recognize the gap as such.
The very first time I can recall hearing this song on my parents’ turntable, I was struck by that groovy little bass riff between the lyric lines “tell you something” and “I think you’ll understand,” and repeated throughout the verses in the same spot. What makes this little flurry of notes so clever is the sudden change in meter (coming out of the slow, steady rocking on the root and sometimes the fifth) and the double emphasis on the leading tones.