User blog comment:Tsunderemio/Sona Rework Concept/@comment-24652752-20161117091829/@comment-30501207-20161117112113

I've thought of giving 3 tiers to the songs, so with every rank of her ultimate, she will unlock 3 songs each. In this way, the player can at least memorize the preceding songs for 5 levels before they unlock the next three, then the same process at max level.

Yes, since each three are linear skillshots, cone skillshots, and AoEs around Sona, respectively. I tried to differ them from each by effects, by cooldowns and by effectiveness.