Please make the "Prelude" a permanent, it's better that way, but nerf it like, max notes 
i think it would be 2 overpowered as a permanent, as a permanent it can create notes/melodies almost every turn + and i think that it would be like flood then, (having 1 on the field is already enough so the 2nd would be useless......)
y is it a spell? ---> if it was a permanent then you would have to use at least 8 of your quantas to make a notes/melodies, 6(cost of notes/melodies) + 2 (its cheapness to get a notes/cards when activated) 8 quanta per turn would be disastrous i think...