Melody based on a note

Anything that doesn't fit into other topics goes here!
Hello.
Is it possible to define custom melody based on a played tone? Something like arpeggio but with my own melody..
if you insert notes to form a melodi and uses my method here:
http://www.youtube.com/watch?v=qBN6Hjom6S0
to create the arpeggio, then i think you have what you want?

Br.