If I understand correctly, you are asking for "fillers," little runs and progressions that musicians use while between songs, or giving the singer time to speak a little before singing, and you just want to "hang out," so to speak, in a certain key.
Am I getting the question right? I am trying to learn some fillers, myself. I'll try to remember to post some when I get them down.
Be Blessed . . . . :lol:
BBoy