Donna Summer’s 1977 dance epic ”MacArthur Park” likely represented Peak Disco. Summer’s unmistakeable vocal style is accompanied by full orchestra, harp, and plenty of synths (all part of producer Giorgio Moroder’s signature sound). There are several key changes, the first appearing at 0:26 as a Baroque-inspired string intro transitions into pop ballad, preceding a shift to straight-ahead disco. If you need more, there’s also a 17-minute “suite” version. 😉
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