MISATO:“you'll memorize the attack pattern that's been
arranged to this music.”
Dr. Nick: I wonder, did Nerv commission this piece of music, or did they just pick a pre-existing song with suitable musical patterns?
UrsusArctos: I always thought that Kaji handed that piece of music to Misato along with the rest of this idea, which means that he (and not Nerv) must've selected a pre-existing song. Incidentally, that particular piece of music is called "Both of You, Dance Like You Want to Win!" (the English title of this episode) and is composed by Shiro Sagisu, Evangelion's regular composer.