Everything is decided on bandstand

Hikashu prepares no setlist. That's their policy. They decide what tune they gonna play, on bandstand. Somebody plays an introduction or a fragment of composition, they would do that. Sometimes more than one member start different song at the same time, then "the battle of which song we'll play" would begin. And they do lots of improvisation. Really a lot. That's why there is no the same Hikashu concert.