this is most exactly the prelude of the Te deum which
is well known for being the intro of the Eurovison
contest. It has the advantage of being very easy to
arrange for beginners with a right hand on a C-G
position and very little motion on the left hand. With
this arrangment for beginners, I've also write an easy
version, but be careful, it is finally not so easy if
you want to play it at the final tempo. the 2 versions
are on the MP3 recording.