If you're interested in creating something like a siren's call or a thematic piece for a daughter, consider looking into music production forums. Websites like Reddit's r/WeAreTheMusicMakers or r/musicproduction can be great resources.
Spotify Greece offers a massive library of Laïka and Dimotika. Use the search bar: Φιλί της κόρης μου Filter by "Tracks." Even if the title isn't exact, you might find it as a hidden lyric in songs by or Pitsa Papadopoulou . h fili tis koris mou greek sirina free