I'm currently taking part in a scoring competition where the task is to score the music for a product trailer.

As common in trailer music I now want to sync my music with the trailer almost frameperfect, however this might get complicated if I can't find an equal timing on which all of the "hit scenes" (where typically a big percussion hit is to be expected) fall. My goal is now to determine a BPM so that all these "hit scenes" are more or less (a difference of some milliseconds between music and video is no serious concern here) frameperfect in place with the beat, so I can reliably score the track.

At the moment I have the problem that there might be some of these scenes correctly alligned with "Bar":00:00 or "Bar":02:00 but I also need to get rid of scenes appearing at timings like "Bar":02:31 or something alike.

I already went through the full trailer and wrote down all the relevant scenes with their according timestamp in [seconds:milliseconds]. Has someone any idea on how to calculate a suitable BPM from this information or has anyone done some syncing of music to a trailer and has experience with this?