Current application has been developed for people, who want buy clip without making.
Just buy what you like! Nothing else.

After adding your track to application*, you can compare its sounds with the clips.
You can add a few tracks, and switch between them!
And you can feel free to scroll your audio track position :)

You can look at this here!

* track not uploaded on the server, so you don't have to worry about leakage of your genius track :)