Andrea Bocelli | Because We Believe

Bocelli’s “Because We Belive” has a textbook example of a “common tone” modulation: a single note is sustained through key change, thus transforming its harmonic function. And the second, at 4:20, is the rare downward modulation, moving from E to D. David Foster is at the keys (he co-wrote the song with his daughter Amy for the 2006 Turin Olympics).

Hall + Oates | Method of Modern Love

By the mid-80s, Hall and Oates had scored a huge number of hits — more than any other duo in history. While 1984’s “Method of Modern Love” isn’t among the band’s top layer of major hits, it features a fun, goofy video concept, a shimmery modulation at 3:50, and a document of what might have arguably been pop music’s “peak mullet” moment.