What form is Brahms Lullaby in music?

Brahms' Lullaby, officially titled "Wiegenlied: Guten Abend, gute Nacht," is primarily structured in a strophic form. This means it consists of repeated verses with the same melody, making it simple and soothing, which is ideal for a lullaby. The piece typically features a gentle, flowing melody that is accompanied by a harmonic progression, creating a calming atmosphere for sleep.