Your three favorite songs/compositions/whatever up to this point in your life, no matter the genre or contradiction in any regard to your personality. Just top three. No need for explanation either.
The promise by Tracy Chapman - had problems with my daughters birth and wasn't able to hold her right away. So when I finally did then I sung her this song.
Moonlight Sonata - just because the melody is soothing and sweet.
Kiss it away By doctor hook - as it reminds me of my father