When we think of the quintessential music of the ’80s, we think of the sound of synthesizers. It’s the music that sounded like the future then, and years later, it sounds like it now. Join me; musician/producer Martyn Ware (founding member of Human League and Heaven 17); and Richard Evans, the author of “Listening to the Music the Machines Make: Inventing Electronic Pop (1978-1983), for a two-part discussion of electronic music’s golden age.