I heard "Streets of Philadelphia" for the first time when I saw Springsteen perform it at the Oscars. I thought it fascinating that he could pull off such a long, repetitive intro, and to have such powerful synth pads. It's amazing that it takes next to no time to get through the lyrics, yet the recorded version breaks a full 4 minutes... and you don't even feel it happen. This was new to me.
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YouTube: ephemeral ideas