I think theme tunes are like moods and change with the soundtrack of your life at the time.

This week I have been mainly Queen - Who wants to live forever.
Also U2 - Desire

A theme for pixie-holics could be Both sides now by Elaine Paige, Julie Covington, Paul Young & Clannad (my favourite version) etc etc

But now old friends are acting strange, they shake their heads, they say
I've changed.
Something's lost but something's gained in living every day.

I've looked at life from both sides now,
from win and lose, and still somehow
it's life's illusions I recall.
I really don't know life at all.

__________________
Strength in depth

I believe your most attractive features are your heart and soul