was later organist, his father Johann Ambrosius Bach one of the main musicians and where Bach himself would sing, a pupil at the same Latin school as Luther between 1693 and 1695., Chapter 3, Music and Lutherism by Robin Leaver Pedaliter settings of Kyrie BWV 669–671 The Kyrie was usually sung in Leipzig on Sundays after the opening organ prelude. Bach's three monumental pedaliter settings of the Kyrie correspond to the three verses. They are in strict counterpoint in the stile antico of Frescobaldi's Fiori Musicali. All three have portions of the same melody as their cantus firmus – in the soprano voice for "God the Father", in the middle tenor voice () for "God the Son" and in the pedal bass for "God the Holy Ghost". Although having features in common with Bach's vocal settings of the Kyrie, for example in his Missa in F major, BWV 233, the highly original musical style is tailored to organ technique, varying with each of the three chorale preludes. Nevertheless, as in other high-church settings of plainsong, Bach's writing remains "grounded in the unchangeable rules of harmony", as described in Fux's treatise on counterpoint, Gradus ad Parnassum." The solidity of his writing might have been a musical means of reflecting 'firmness in faith'. As observes, "Common to all three movements is a certain seamless motion that rarely leads to full cadences or sequential repetition, both of which would be more diatonic than suits the desired transcendental style." Below is the text of the three verses of Luther's version of the Kyrie with the English translation of Charles Sanford Terry: Kyrie, Gott Vater in Ewigkeit, groß ist dein Barmherzigkeit, aller Ding ein Schöpfer und Regierer. eleison! Christe, aller Welt Trost uns Sünder allein du hast erlöst; Jesu, Gottes Sohn, unser Mittler bist in dem höchsten Thron; zu dir schreien wir aus Herzens Begier, eleison! Kyrie, Gott heiliger Geist, tröst', stärk' uns im Glauben allermeist daß wir am letzten End' fröhlich abscheiden aus diesem Elend, eleison! O Lord the Father for evermore! We Thy wondrous grace adore; We confess Thy power, all worlds upholding. Have mercy, Lord. O Christ, our Hope alone, Who with Thy blood didst for us atone; O Jesu! Son of God! Our Redeemer! our Advocate on high! Lord, to Thee alone in our need we cry, Have mercy, Lord. Holy Lord, God the Holy Ghost! Who of life and light