I Finally edited the Timelapse from the painting ...
It takes some time to find music to go with the video.
I search for hours on https://Filmmusic.io
Let me know if it suits ? I can always modify the music once it is uploaded.
So I search for Music that I like, then I overlay it on iMovie and see if it synchronizes well with the Timelapse.
This song works well since the music changes when I start to paint the Mandalorian.