Study Music Composition, and trying synchronizing animated GeoGebra equations to my music and vice versa. Interested in automation between 1) what happens in the Midi files of my composition and 2) the ggb events 3) in order to automate the synchronisation between them. Actually I am using iMovie to do a semi automated synchronisation , I save several ggb in different parameter states, I capture them in different videos , I speed them up or slow them down in iMovie in order to meet the music events. it is a long process, any automation idea would be useful, all help is welcomed . Here is the list of my composition Almost synchronized to GeoGebra animated equations: https://www.youtube.com/playlist?list=PLHsHfKHL2zdHail95r8hgaimahdFMPi7N