Tbh, I tend to edit blocks of animation (with tails) in a video editor to the music. Afx is useless with real time audio. If I need to be clever with transition or lining up, I'll re-import the projectt back into Afx and then swap out the rendered clips with the original comps.
If you have access to an audio editor, like Sound Forge, you can put markers onto a .wav file, which will be seen in Afx, so you have visual cues for certain beats or bars, which your timeline will snap to by pressing shift and moving.