Johnny Cash did a song called The Troubador many years ago.
I remember a few lines.

The troubadour the troubadour
Sings with his heart
The song that's the hit of the show
Watch him sing and play the strings
Of his guitar
Alone in the warm spotlight's glow
He song is for someone he loved so true
Who loved him and left him for someone new
But in the crowd, one head is bowed for the troubadour
And oh her heart aches most of all.

It's been years since I heard it, so don't know if those words are anywhere near right.

Giok