"Festival book to celebrate the 125th anniversary of the Bad Kreuznach Concert Society, 1830-1955." Knettel pictured on p. 5 as Choir Director of the Konzertgesellschaft since 1908 and listed, on p. 7, as director of a performance of Beethoven's Missa Solemnis on Sunday, the 30th of October 1955, at 4:00 pm.

Sheet music for "I Shall Walk Proudly;" the poem was written by Arthur Sampley and the music is by Gerhardt Dorn. The lyrics say "I shall/ walk proudly through these lonely/ ways because I once walked proudly by your side/ not even death can rob me of the bride whose beauty/ made man love and woman praise. I wear with pride the/ splendor that you shed upon my days./ So walks a warrior's steed behind the pall and so the aide behind the/ nation's head and so the bridesmaid to the wedding strain,/ and so I walk, who, having lost my all,/ go with the valiant bearing of the dead and wear, like her, the/ smile above the pain."

Compositions for solo organ