Because I can't figure out 1) the title and 2) the musician.
Which is weird, because I can hear the song clearly in my head. I can hear the band, each instrument, all the string orchestration. I can hear the singer's voice, even the distinct syllables as he sings, the timbre of his voice. It's like listening to the song on the radio, but I can't made enough sense of the lyrics to identify the song. I can hear the syllables, but they aren't forming words.
It's fucking maddening.
I've identified the time period - late 70s to mid-80s. I've crossed some artists off the list, because the singer's voice is wrong, or their songwriting is too simplistic to have come up with this orchestration. Still.... nothing.
Finally, I finish my shower. Soap and conditioner all warshed off. I turn off the water. The little bath->shower water redirect knob drops down with a click.