From level 2-5, you get to choose an advanced move from the level 2-5 list. From level 6-10, you get to choose from the level 6-10 moves or the 2-5 moves, your call. See for example the Bard: In the pre-release pdf, the level 2-5 moves start at the top of p. 77, while the 6-10 moves start about midway through p. 78 (beginning with Healing Chorus).