In "Erlkönig", what type of singing voice is primarily featured?

"Erlkönig," composed by Franz Schubert, primarily features the baritone voice. In this piece, the character of the Erlking, who tempts the child, is often sung by a baritone, as this vocal range allows for a rich and powerful expression of the character's dark and seductive nature. The lower register of the baritone voice lends itself well to portray the Erlking’s allure and danger, creating a compelling contrast against the higher, more innocent tones representing the child. This effective use of vocal range enhances the dramatic tension in the narrative, making the baritone a fitting choice for this role. The piece showcases the emotional depth and complexity of the baritone voice, effectively conveying the contrasting themes present in the text.