Why does the song always rewind in Spotify after I start playing it?

In order to synchronize the light show exactly with the music, we need to have the lights and the music start at EXACTLY the same time. Since we can't predict when you will tap Play in Spotify, we achieve this precise synchronization by controlling your Spotify playback. Once we detect that you have started playing a new song, we restart the song and start the show at exactly the same time, with robot precision