- Upbeat
- Electronic
- Barely uses lyrics
- stops suddenly for gags
- voiceover speak over any lyrics
- Acoustic
- Love song
- more than one song; some lyrics/ some not
- R&B/Soul
- Stops suddenly- restarts after gag
- more than one song; some with lyrics, some without
- background music no distinct relation to content
- electronic
- suddenly stops
- several famous songs with lyrics- pop, alternative, acoustic
- all with lyrics except intro
- soundtrack included and features known songs and bands
From this I have found that there is usually more than one song in a trailer and some include lyrics and some do not. Also, the music will be from one genre, and it is normally pop, or something similar. Even though the songs in the Confessions of a Shopaholic trailer are R&B/Soul, they are still well known songs and therefore could be classed as Pop.