Hi, I am a graphic designer, I would love to work with you on this project. I use Adobe Premiere Pro tool for video editing.
In the case of music synchronization, I'm used to edit soccer videos for clients and they like the rhythm of the music to be synchronized with the goal, to give you an example.
In reference to copyright, I am also informed of all this, as I have several youtube channels and I know how the issue of youtube strikes goes.
Regarding your projects, I will have total availability and we will be able to revise what you want to make the video perfect.