The now-standard harmonisation was devised by Felix Mendelssohn in 1840 when he adopted the hymn, sung in the now-standard key of F major and with its original German lyrics, as the chorale to his Lobgesang or Hymn of Praise (also known as his Symphony No.
Mendelssohn's modernization was established in 1840 when he adapted the hymn, sung in the current standard key of F major and with its original German lyrics, as the chorale for his Symphony of Praise (also referred to as his Symphony No.