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#77 - Midsommar-sang (Midsummer Hymn—Swedish), #607 - It is Now Time and #700 - Hvad kan os komme til for nod (No Harm can come to us—Norwegian) are the same melody, although the accompaniment differs significantly.
Although the melody is often attributed to Martin Luther
, it is doubtful that he was the actual composer. Luther was responsible for the alternate text: Nun freut euch, lieben Christen g'mein, 1523.