How do I object vibrate to the music

I hate to resurrect posts, but ...

actually there is no way to make an object vibrate to the music for mobile with the construct?

Create a Browser object, it has the action " vibrate "

what?

It's not easy by any stretch and would probably involve javascript because you'd have to analyse the frequency of the music.

If the music has a very strong repetitive beat, you may be able to use that as the basis for your vibration - if it is all over the place, you are looking at solutions like analysing the music externally and creating a data item which has the song rythym.