Nun Jüngelchen ergötze dein Züngelchen

Sich da, der faule Siebenschläfer! is an aria from act 3 of the fairy-tale opera Hänsel und Gretel by Engelbert Humperdinck. It is sung by the Gingerbread Witch (mezzo-soprano). The vocal range needed for this piece is from the low B♭3 to high B♭5, and the tessitura needed is the middle C4 to the high G5.