The formerly promising young songwriters Pasek and Paul, who created an interesting score for Dogfight and a surprisingly accomplished one for the holiday show A Christmas Story, are promising no more; their talent is thoroughly realized with Dear Evan Hansen, one of the strongest scores in years. The songs are not merely tuneful and funny and touching; Pasek and Paul can plumb the inner depths of their characters and rip through emotions in words and music. And as contemporary as their new score is, it should be added that their three musicals have demonstrated that they are equally adept in varied musical theatre styles.