|When the Wind Blows performed by David Bowie ()|
I discovered this work of absolute genius today - it was on a 3 disc Bowie compilation ("The Platinum Collection") which a colleague was playing at work.
The song starts with an echoey 80s drum sound with a repeated guitar riff, behind which we begin to hear a beautiful chord sequence played on the synth. The riff drops out and Bowie sings a fantastic melody over the chord sequence, which takes many subtle and grand turns. The song has a relatively complicated construction and instrumentation.