>Aquí me pongo a cantar
>Al compás de la vigüela;
>Que el hombre que lo desvela
>Una pena extraordinaria,
>Como la ave solitaria
>Con el cantar se consuela.
>
>Martín Fierro by José Hernandez
>
>http://www.me.gov.ar/efeme/tradicion/versos.html
>
>(Nobody said in English <g>)

Outstanding in Spanish. :o) Just not the same in English:

I sit me here to sing my song
To the beat of my old guitar
To the man whose life is a bitter cup,
With a song may yet his heart lift up,
As the lonely bird on a leafless tree
That sings 'neath the gloaming star.

(Walter Owen's poetic license translation)

but I think closer is:

Here I come to sing
To the beat of the vigüela (or the rhythm of the guitar)
That a man who reveals it (or the man who cannot sleep)
An extraordinary sorrow (because of an extraordinary grief)
Like a solitary bird (who like a lonely or solitary bird)
With the singing it comforts (finds solace in its song)

Not sure - it is really difficult (actually impossible) with poetry