Ugchen65,345 Locked 02 Dec 2015
Not a solution but a hint:
Check your Helix-Credits Ingame regularly.
By collecting of Helix-Glitches, Community-Glitches, Crates etc. I got Helix-Credits. At around 60% completion of the game, I have had 1200 Helix-Credits and could buy the Hack from the Ingame-Shop to set all music-boxes on the world-map.
I don´t know if everybody gets those Helix-Credits, but if you get it, its really great and time-saving instead of watching videos.