The one-shots always follow the song (many are, in fact, designed with the song in mind, e.g. Flow Flow). The ones that get used again...it gets tricky. A few of them have a number of songs in the same vein, like Sumire, Hugh, Murasaki, or Roku, but very often the second song is nothing like the first, and the character just "feels right". (Note how Space Maco went from happy hardcore to mushy girly-girl romance.)
The long-timers, you can usually count on their songs following into a general range...dance for Judy, remixes for MZD, Classic amalgams for Hamanov. This isn't always the case though. Mary's covered a lot of ground, Rie even more so.
The one character I can't peg at all is Ageha. Besides "pretty slow", what the heck kind of corollary is there between her songs? |