euch

"Nun freut euch, lieben Christen g'mein", or “Dear Christians, One and All, Rejoice” in English, is a Lutheran hymn, written in 1523 by Martin Luther. It is one of Luther's early hymns and considered by some as one of his finest. It was published as one of eight songs in 1524 in the first Lutheran hymnal, the Achtliederbuch. The Achtliederbuch contained four songs by Luther, three by Speratus, and one by Justus Jonas. It appeared also in 1524 in the Erfurt Enchiridion.
Apart from the hymn tunes with which it appeared in the Achtliederbuch (Zahn No. 4427) and in the Erfurt Enchiridion (Zahn No. 4428), a third melody, Zahn No. 4429a, was published for the hymn in 1535. Johann Sebastian Bach used both the first and the last of these melodies in his compositions.

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