How to set the current playback position with JS

Hello,

I am trying to sync it up with some music (:

Wondering on the JS side if it is possible to get the current playback frame, as well as set the playback frame.

I see _getNumberOfAnimationFrames but no luck yet having control of the playback position.

Thanks!

Start by tracing the JavaScript API around _getNumberOfAnimationFrames, which the issue identifies as the nearest existing entry point. Determine how the current playback frame is represented and where a read and set interface would belong; done means JavaScript can read and control the playback position for music synchronization.

Written by the indexing model from the issue text.