Music first, always. It's so much fun dissecting the music and keying the movements and micro-movements of the animation to the nuances of the music. The only issue I have with doing that is I'd have to really love the song to not get sick of it after having done the dissection and syncing. Generally, when I listen to a song I've synced, all I can think about is where I placed the markers and how I wished I'd done it better.
Granted, it is always nice to see an animation flow naturally with the audio.
@Zickar I yeah for the few C4D projects I did with music syncing, I used the same song in there too. Though along with what you mentioned about a different song, I did sort of try that once. I found two songs with the same bpm and time signatures, sync'd the visuals to the first song within C4D, then swapped that song out for the other. So I guess he and I got the same idea for the most part. Though I was experimenting to see how it would work rather than so I wouldn't get sick of the one song.
But that is a great idea. I don't think I would have thought of that aspect of it, heh.
It looks like you're new here. If you want to get involved, click one of these buttons!