Oh... I haven't heard this song in a long time... Music by Ginastera, and a heart-breaking poem by Francisco Silva y Valdes.
CANCIÓN DEL ARBOL DEL OLVIDO
En mis pagos hay un arbol
Que del olvido se llama,
Al que van a despenarse,
Vidalitay, Vidalitay,
Los moribundos del alma.
Para no pensar en vos
Bajo el arbol del olvido
Me acosté una nochecita,
Vidalitay, Vidalitay,
Y me quedé bien dormido.
Al despertar de aquel sueño
Pensaba en vos otra vez,
Pues me olvidé de olvidarte,
Vidalitay, Vidalitay,
Encuantito me acosté.
THE SONG OF THE TREE OF FORGETTING*
In my neighborhood there is a tree
that's called the tree of forgetting,
to which go to lay down their troubles,
Vidalitay, Vidalitay,
those whose souls are dying.
So that I would no longer think of you
under the tree of forgetting
I lay down one evening,
Vidalitay, Vidalitay,
and I fell fast asleep.
When I awoke from that dream
I thought of you once again,
because I forgot to forget you,
Vidalitay, Vidalitay,
as soon as I lay down.
(English translation by Jacqueline Cockburn)
*The song title is also translated as "The Tree of Obilvion".