A while back I wrote three preludes based on the hymn tune, St. Anne, better known as “Oh God, Our Help in Ages Past.” This is the 2nd movement of that set. The hymn tune is stated twice. During the first half of the prelude, the melody (in G major) is the top note of the chords in triple meter (it’s usually in quadruple meter), in the second half of the piece, the melody’s in the top note of the chords in the right hand. The melody’s easier to hear in the second half.