I'm singing the
Simon and Garfunkel song in my head and will be all day, thanks to you!
Apart from the lady (?) in the song, I find
Cecilia too long and too frilly. I love
Cecily and would use it happily; I would also have been glad to be a
Cecily myself, honouring my father.
That said,
Cecilia at least has an authentic spelling.
Cecelia is atrocious.