Idle theme - Tragic Duality
A melodic and melacholic tune, played mostly with strings. We're going for something beautiful but ultimately sad to represent how they feel towards themselves here. Ideally, it should strike a balance between beautiful and sad, so its not a COMPLETE downer of a theme.
Fight theme - Giveth // Taketh
A sped up version of the idle theme but intercut with fast, choppy bit. This is supposed to represent their duality with the melody playing the role of "creation" and the fast, choppy bits to represent "destruction". Considering they may be using both creation and destruction abilities to fight, this seems especially fitting.
Boss theme - Make Me Known
A third version of the idle theme that expands it to encompass the whole orchestra. Whereas the fight theme made the fast, choppy sections jarring, here it all should flow together. The melodic parts are joined by flutes and other "beautiful sounds" that speed up into frantic strings with clashes of symbals. The theme is supposed to sound unstable but still flow and ultimately put you on edge, showing not only the danger of fighting Evalie but echoing the constant shifting in their mind. It should also be a memorable theme so you, the one fighting them, fulfill the title of the song and "make them known".