First Video Clip:

• Orchestra music as the keynote
• Signal sound was the narrator

• Soundmark was the guitar pop song

We inferred that it was a movie trailer. The video clip sounded like a family movie.

Second Video Clip:

• Keynote sound was high pitch, followed by a low bass note
•  Signal sound was the alien, outer-space sounding line
• Soundmark was the dissonance that makes it kind of scary or like a horror film

We inferred that it was some kind of horror, sci-fi film because of its gradual pickup of speed and musical dissonance.