If there was ever such a thing as an appropriate crossover, this would be it.
I keep imagining Haruka using Vocaloids to write her songs, then giving the mp3 to each of the boys as a study tape. That way, they’ll get all their notes right faster than having to read them from her piano piece sheet.
Ok, my imagination is running away with me again~ Hoho~ Time for bed!
EDIT: And for the guys, you might enjoy this version better: