Your custom sountracks in backwards compatible games

According to Xbox 360 Fanboy, since the update you can now listen to your own custom soundtracks in any backwards compatible Xbox 1 game the same way as in 360 games. Just set up the music you want, then boot up the Xbox 1 game and it will continue to play. You won't be able to control it though, so set the volume, playlist and shuffle before you go into the game.