Oh du Fröhliche (哦，你快乐)-Volksweise

After Falk lost four of his seven children to typhoid fever, he founded the Rettungshaus für verwahrloste Kinder (Rescue house for abandoned children) in Weimar. In late 1815 or early 1816, he dedicated this song to the children of the orphanage. The melody was taken from the anonymous Catholic hymn "O Sanctissima" (also known as "Sicilian Mariners Hymn"), which he found in the posthumous edition of J.G. Herder's Stimmen der Völker in Liedern after hearing it sung by Pietro Granucci, an Italian foundling under his care. In Falk's original text, the song was titled "Allerdreifeiertagslied" (A song for three holidays), highlighting the three major festivals of Christianity: Christmas, Easter and Pentecost.