Could you help me identify this song?

[superchorus]

Hi all,

There is a song that I really like, but I do not know its name or that of its interpreter. I would ask you to listen to it ant tell me if you know it.
The song is instrumental. I recorded it from a radio braodcast around 1992--1994. Since I lost the tape, I have recorded it myself playing the guitar. I believe it is close enough to the original song that you can recognise it if you know it.
The song is in Youtube. Please type "4nAK4OOyIMI" in Youtube's search box and you will see the video, titled "Una canción desconocida" ("An unknown song"). By the way, the image has nothing to do with the song, it's just a nice picture that I added.
Thanks for your help!

Luis