Song covering.

[tonykattvc]

I am pretty new!
Anyways, Here's my problem:
I want to cover the most noticable notes of a techno-like song with a single short sound, and change the pitch of that sound to accomadate the pitch of the notes.
Somewhat like this:
http://www.youtube.com/watch?v=tgOx5IDQz9I
This one has original track mostly present, this is more of my desired end product:
http://www.youtube.com/watch?v=tgOx5IDQz9I
I want to know the most effective way to do this.