I have a question about NCIS?

There is a certain instrumental piece of music in the following scenes
of these episodes. Do you know if this instrumental piece is on the
NCIS Score Soundtrack, if so, what is the name of the instrumental
piece?

Hiatus: Part 2: Scene where Gibbs is in the restroom
Hiatus: Part 2: Scene where Mike talks to Gibbs about 9/11
Shalom: Scene where Ziva talks to Gibbs on the phone
Escaped: Scene where Gibbs walks out of the autopsy room and into the
elevator

Thanks, any answers would be greatly appreciated!