Sorry for the delayed response man, ya I always like good songs in foreign languages, as I don't understand the lyrics so it is all about the musicality and instruments, which causes the brain to appreciate other parts of a song and not just the lyrics..

I just gave Pedro Castillo - Bajo Las Nubes another listen and better on second listening - I think I was busy doing a task when I had it on in background a few days ago... Nice recommendation too..

Ya Canción Romántica is special alright, just listened again and although the recording quality is poor enough, it is my fav of the songs that you shared.